It is a small world that flocks to Switzerland for the Christmas holidays. It is also a world largely composed of that particular class which really did provide Doctor Dollar with the majority of his cases. He was therefore not surprised, on the night of his arrival at the great Excelsior Hotel, in Winterwald, to feel a diffident touch on the shoulder, and to look round upon the sunburned blushes of a quite recent patient.

George Edenborough had taken Winterwald on his wedding trip, and nothing would suit him and his nut-brown bride but for the doctor to join them at their table. It was a slightly embarrassing invitation, but there was good reason for not persisting in a first refusal. And the bride carried the situation with a breezy vitality, while her groom chose a wine worthy of the occasion, and the newcomer explained that he had arrived by the afternoon train, but had not come straight to the hotel.

"Then you won't have heard of our great excitement," said Mrs. Edenborough, "and I'm afraid you won't like it when you do!"

"If you mean the strychnine affair," returned Dollar, with a certain deliberation, "I heard one version before I had been in the place an hour. I can't say that I did like it. But I should be interested to know what you both think about it all."

Edenborough returned the wine-list to the waiter with sepulchral injunctions.

"Are you telling him about our medical scandal?" he inquired briskly of the bride. "My dear doctor, it'll make your professional hair stand on end! Here's the local practitioner been prescribing strychnine pills warranted to kill in twenty minutes!"

"So I hear," said the crime doctor, dryly.

"The poor brute has been frightfully overworked," continued Edenborough, in deference to a more phlegmatic front than he had expected of the British faculty. "They say he was up two whole nights last week; he seems to be the only doctor in the place, and the hotels are full of fellows doing their level best to lay themselves out. We've had two concussions of the brain and one complicated fracture this very week. Still, to go and give your patient a hundred times more strychnine than you intended——"

And he stopped himself, as though the subject, which he had taken up with a purely nervous zest, was rather near home after all.

"But what about his patient?" adroitly inquired the doctor. "If half that one hears is true, he wouldn't have been much loss."

"Not much, I'm afraid," said Lucy Edenborough, with the air of a Roman matron turning down her thumbs.

"He's a fellow who was at my private school, just barely twenty-one, and making an absolute fool of himself," exclaimed Edenborough, touching his glass. "It's an awful pity. He used to be such a nice little chap, Jack Laverick."

"He was nice enough when he was out here a year ago," the bride admitted, "and he's still a sportsman. He won half the toboggan races last season, and took it all delightfully; he's quite another person now, and gives himself absurd airs on top of everything else. Still, I shall expect Mr. Laverick either to sweep the board or break his neck. He evidently wasn't born to be poisoned."

"Did he come to grief last year, Mrs. Edenborough?"

"He only nearly had one of his ears cut off, in a spill on the ice-run. So they said; but he was tobogganing again next day."

"Doctor Alt looked after him all right then, I hear," added Edenborough, as the champagne arrived. "But I only wish you could take the fellow in hand! He really used to be a decent chap, but it would take even you all your time to make him one again, Doctor Dollar."

The crime doctor smiled as he raised his glass and returned compliments across the bubbles. It was the smile of a man with bigger fish to fry. Yet it was he who came back to the subject of young Laverick, asking if he had not a tutor or somebody to look after him, and what the man meant by not doing his job.

In an instant both the Edenboroughs had turned upon their friend. Poor Mr. Scarth was not to blame! Poor Mr. Scarth, it appeared, had been a master at the preparatory school at which Jack Laverick and George Edenborough had been boys. He was a splendid fellow, and very popular in the hotel, but there was nothing but sympathy with him in the matter under discussion. His charge was of age, and in a position to send him off at any moment, as indeed he was always threatening in his cups. But there again there was a special difficulty: one cup was more than enough for Jack Laverick, whose weak head for wine was the only excuse for him.

"Yet there was nothing of the kind last year," said Mrs. Edenborough, in a reversionary voice; "at least, one never heard of it And that makes it all the harder on poor Mr. Scarth."

Dollar declared that he was burning to meet the unfortunate gentleman; the couple exchanged glances, and he was told to wait till after the concert, at which he had better sit with them. Was there a concert? His face lengthened at the prospect, and the bride's eyes sparkled at his expense. She would not hear of his shirking it, but went so far as to cut dinner short in order to obtain good seats. She was one of those young women who have both a will and a way with them, and Dollar soon found himself securely penned in the gallery of an ambitious ballroom with a stage at the other end.

The concert came up to his most sardonic expectations, and he resigned himself to a boredom only intensified by the behavior of some crude humorists in the rows behind. Indifferent song followed indifferent song, and each earned a more vociferous encore from those gay young gods. A not unknown novelist told dialect stories of purely territorial interest; a lady recited with astounding spirit; another fiddled, no less courageously; but the back rows of the gallery were quite out of hand when a black-avised gentleman took the stage, and had not opened his mouth before those back rows were rows of Satan's reproving sin and clapping with unsophisticated gusto.

"Who's this!" asked Dollar, instantly aware of the change behind him. But even Lucy Edenborough would only answer, "Hush, doctor!" as she bent forward with shining eyes. And certainly a hairpin could not have been dropped unheard before the dark performer relieved the tension by plunging into a scene from Pickwick.

It was the scene of Mr. Jingle's monologue on the Rochester coach—and the immortal nonsense was inimitably given. Yet nobody could have been less like the emaciated prototype than this tall tanned man, with the short black mustache, and the flashing teeth that bit off every word with ineffable snap and point.

"Mother—tall lady, eating sandwiches—forgot the arch—crash—knock—children look round—mother's head off—sandwich in her hand—no mouth to put it in——" and his own grim one only added to the fun and swelled the roar.

He waited darkly for them to stop, the wilful absence of any amusement on his side enormously increasing that of the audience. But when it came to the episode of Donna Christina and the stomach-pump, with the culminating discovery of Don Bolaro Fizzgig in the main pipe of the public fountain, the guffaws of half the house eventually drew from the other half the supreme compliment of exasperated demands for silence. Mrs. George Edenborough was one of the loudest offenders. George himself had to wipe his eyes. And the crime doctor had forgot that there was such a thing as crime.

"That chap's a genius!" he exclaimed, when a double encore had been satisfied by further and smaller doses of Mr. Jingle, artfully held in reserve. "But who is he, Mrs. Edenborough?"

"Poor Mr. Scarth!" crowed the bride, brimming over with triumphant fun.

But the doctor's mirth was at an end.

"That the fellow who can't manage a bit of a boy, when he can hold an audience like this in the hollow of his hand?"

And at first he looked as though he could not believe it, and then all at once as though he could. But by this time the Edenboroughs were urging Scarth's poverty in earnest, and Dollar could only say that he wanted to meet him more than ever.

The wish was not to be gratified without a further side-light and a fresh surprise. As George and the doctor were repairing to the billiard-room, before the conclusion of the lengthy program, they found a group of backs upon the threshold, and a ribald uproar in full swing within. One voice was in the ascendent, and it was sadly indistinct; but it was also the voice of the vanquished, belching querulous futilities. The cold steel thrusts of an autocratic Jingle cut it shorter and shorter. It ceased altogether, and the men in the doorway made way for Mr. Scarth, as he hurried a disheveled youth off the scene in the most approved constabulatory manner.

"Does it often happen, George?" Dollar's arm had slipped through his former patient's as they slowly followed at their distance.

"Most nights, I'm afraid."

"And does Scarth always do what he likes with him—afterward?"

"Always; he's the sort of fellow who can do what he likes with most people," declared the young man, missing the point. "You should have seen him at the last concert, when those fools behind us behaved even worse than to-night! It wasn't his turn, but he came out and put them right in about a second, and had us all laughing the next! It was just the same at school; everybody was afraid of Mostyn Scarth, boys and men alike; and so is Jack Laverick still—in spite of being of age and having the money-bags—as you saw for yourself just now."

"Yet he lets this sort of thing happen continually?"

"It's pretty difficult to prevent. A glass about does it, as I told you, and you can't be at a fellow's elbow all the time in a place like this. But some of Jack's old pals have had a go at him. Do you know what they've done? They've taken away his Old Etonian tie, and quite right too!"

"And there was nothing of all this last year?"

"So Lucy says. I wasn't here. Mrs. Laverick was, by the way; she may have made the difference. But being his own master seems to have sent him to the dogs altogether. Scarth's the only person to pull him up, unless—unless you'd take him on, doctor! You—you've pulled harder cases out of the fire, you know!"

They had been sitting a few minutes in the lounge. Nobody was very near them; the young man's face was alight and his eyes were shining. Dollar took him by the arm once more, and they went together to the lift.

"In any case I must make friends with your friend Scarth," said he. "Do you happen to know his number?"

Edenborough did—it was 144—but he seemed dubious as to another doctor's reception after the tragedy that might have happened in the adjoining room.

"Hadn't I better introduce you in the morning?" he suggested with much deference in the lift. "I—I hate repeating things—but I want you to like each other, and I heard Scarth say he was fed up with doctors!"

This one smiled.

"I don't wonder at it."

"Yet it wasn't Mostyn Scarth who gave Doctor Alt away."

"No?"

Edenborough shook his head as they left the lift together. "No, doctor. It was the chemist here, a chap called Schickel; but for him Jack Laverick would be a dead man; and but for him again, nobody need ever have heard of his narrow shave. He spotted the mistake, and then started all the gossip."

"I know," said the doctor, nodding.

"But it was a terrible mistake! Decigrams instead of milligrams, so I heard. Just a hundred times too much strychnine in each pill."

"You are quite right," said John Dollar quietly. "I have the prescription in my pocket."

"You have, doctor?"

"Don't be angry with me, my dear fellow! I told you I had heard one version of the whole thing. It was Alt's. He's an old friend—but you wouldn't have said a word about him if I had told you that at first—and I still don't want it generally known."

"You can trust me, doctor, after all you've done for me."

"Well, Alt once did more for me. I want to do something for him, that's all."

And his knuckles still ached from the young man's grip as they rapped smartly at the door of No. 144.

II

It was opened a few inches by Mostyn Scarth. His raiment was still at concert pitch, but his face even darker than it had been as the crime doctor saw it last.

"May I ask who you are and what you want?" he demanded—not at all in the manner of Mr. Jingle—rather in the voice that most people would have raised.

"My name's Dollar and I'm a doctor."

The self-announcement, pat as a polysyllable, had a foreseen effect only minimized by the precautionary confidence of Doctor Dollar's manner.

"Thanks very much. I've had about enough of doctors."

And the door was shutting when the intruder got in a word like a wedge.

"Exactly!"

Scarth frowned through a chink just wide enough to show both his eyes. It was the intruder's tone that held his hand.

"What does that mean?" he demanded with more control.

"That I want to see you about the other doctor—this German fellow," returned Dollar, against the grain. But the studious phrase admitted him.

"Well, don't raise your voice," said Scarth, lowering his own as he shut the door softly behind them. "I believe I saw you down-stairs outside the bar. So I need only explain that I've just got my bright young man off to sleep, on the other side of those folding-doors."

Dollar could not help wondering whether the other room was as good as Scarth's, which was much bigger and better appointed than his own. But he sat down at the oval table under the electrolier, and came abruptly to his point.

"About that prescription," he began, and straightway produced it from his pocket.

"Well, what about it?" the other queried, but only keenly, as he sat down at the table, too.

"Doctor Alt is a very old friend of mine, Mr. Scarth."

Mostyn Scarth exhibited the slight but immediate change of front due from gentleman to gentleman on the strength of such a statement. His grim eyes softened with a certain sympathy; but the accession left his gravity the more pronounced.

"He is not only a friend," continued Dollar, "but the cleverest and best man I know in my profession. I don't speak from mere loyalty; he was my own doctor before he was my friend. Mr. Scarth, he saved more than my life when every head in Harley Street had been shaken over my case. All the baronets gave me up; but chance or fate brought me here, and this little unknown man performed the miracle they shirked, and made a new man of me off his own bat. I wanted him to come to London and make his fortune; but his work was here, he wouldn't leave it; and here I find him under a sorry cloud. Can you wonder at my wanting to step in and speak up for him, Mr. Scarth?"

"On the contrary, I know exactly how you must feel, and am very glad you have spoken," rejoined Mostyn Scarth, cordially enough in all the circumstances of the case. "But the cloud is none of my making, Doctor Dollar, though I naturally feel rather strongly about the matter. But for Schickel, the chemist, I might be seeing a coffin to England at this moment! He's the man who found out the mistake, and has since made all the mischief."

"Are you sure it was a mistake, Mr. Scarth?" asked Dollar quietly.

"What else?" cried the other, in blank astonishment. "Even Schickel has never suggested that Doctor Alt was trying to commit a murder!"

"Even Schickel!" repeated Dollar, with a sharp significance. "Are you suggesting that there's no love lost between him and Alt?"

"I was not, indeed." Scarth seemed still astonished. "No. That never occurred to me for a moment."

"Yet it's a small place, and you know what small places are. Would one man be likely to spread a thing like this against another if there were no bad blood between them?"

Scarth could not say. The thing happened to be true, and it made such a justifiable sensation. He was none the less frankly interested in the suggestion. It was as though he had a tantalizing glimmer of the crime doctor's meaning. Their heads were closer together across the end of the table, their eyes joined in mutual probation.

"Can I trust you with my own idea, Mr. Scarth?"

"That's for you to decide, Doctor Dollar."

"I shall not breathe it to another soul—not even to Alt himself—till I am sure."

"You may trust me, doctor. I don't know what's coming, but I shan't give it away."

"Then I shall trust you even to the extent of contradicting what I just said. I am sure—between ourselves—that the prescription now in my hands is a clever forgery!"

Scarth held out his hand for it. A less deliberate announcement might have given him a more satisfactory surprise; but he could not have looked more incredulous than he did, or subjected Dollar to a cooler scrutiny.

"A forgery with what object, Doctor Dollar?"

"That I don't pretend to say. I merely state the fact—in confidence. You have your eyes upon a flagrant forgery."

Scarth raised them twinkling. "My dear Doctor Dollar, I saw him write it out myself!"

"Are you quite sure?"

"Absolutely, doctor! This lad, Jack Laverick, is a pretty handful; without a doctor to frighten him from time to time, I couldn't cope with him at all. His people are in despair about him—but that's another matter. I was only going to say that I took him to Doctor Alt myself, and this is the prescription they refused to make up. Schickel may have a spite against Alt, as you suggest, but if he's a forger I can only say he doesn't look the part."

"The only looks I go by," said the crime doctor, "are those of the little document in your hand."

"It's on Alt's paper."

"Anybody could get hold of that."

"But you suggest that Alt and Schickel have been on bad terms?"

"That's a better point, Mr. Scarth, that's a much better point," said Dollar, smiling and then ceasing to smile as he produced a magnifying-lens. "Allow me to switch on the electric standard, and do me the favor of examining that handwriting with this loop; it's not very strong, but the best I could get here at the photographer's shop."

"It's certainly not strong enough to show anything fishy, to my inexperience," said Scarth, on a sufficiently close inspection.

"Now look at this one."

Dollar had produced a second prescription from the same pocket as before. At first sight they seemed identical.

"Is this another forgery?" inquired Scarth, with a first faint trace of irony.

"No. That's the correct prescription, rewritten by Alt at my request, as he is positive he wrote it originally."

"I see now. There are two more noughts mixed up with the other hieroglyphs."

"They happen to make all the difference between life and death," said Dollar gravely. "Yet they are not by any means the only difference here."

"I can see no other, I must confess." And Scarth raised his eyes just as Dollar's fell from his broad brown brow.

"The other difference is, Mr. Scarth, that the prescription with the strychnine in deadly decigrams has been drawn backward instead of being written forward."

Scarth's stare ended in a smile.

"Do you mind saying all that again, Doctor Dollar?"

"I'll elaborate it. The genuine prescription has been written in the ordinary way—currente calamo. But forgeries are not written in the ordinary way, much less with running pens; the best of them are written backward, or rather they are drawn upside down. Try to copy writing as writing, and your own will automatically creep in and spoil it; draw it upside down and wrong way on, as a mere meaningless scroll, and your own formation of the letters doesn't influence you, because you are not forming letters at all. You are drawing from a copy, Mr. Scarth."

"You mean that I'm deriving valuable information from a handwriting expert," cried Scarth, with another laugh.

"There are no such experts," returned Dollar, a little coldly. "It's all a mere matter of observation, open to everybody with eyes to see. But this happens to be an old forger's trick; try it for yourself, as I have, and you'll be surprised to see how much there is in it."

"I must," said Scarth. "But I can't conceive how you can tell that it has been played in this case."

"No? Look at the start, 'Herr Laverick,' and at the finish, 'Doctor Alt.' You would expect to see plenty of ink in the 'Herr,' wouldn't you? Still plenty in the 'Laverick,' I think, but now less and less until the pen is filled again. In the correct prescription, written at my request to-day, you will find that this is so. In the forgery the progression is precisely the reverse; the t in 'Alt' is full of ink, but you will find less and less till the next dip in the middle of the word 'Mahlzeit' in the line above. The forger, of course, dips oftener than the man with the running pen."

Scarth bent in silence over the lens, his dark face screwed awry. Suddenly he pushed back his chair.

"It's wonderful!" he cried softly. "I see everything you say. Doctor Dollar, you have converted me completely to your view. I should like you to allow me to convert the hotel."

"Not yet," said Dollar, rising, "if at all as to the actual facts of the case. It's no use making bad worse, Mr. Scarth, or taking a dirty trick too seriously. It isn't as though the forgery had been committed with a view to murdering your young Laverick."

"I never dreamed of thinking that it was!"

"You are quite right, Mr. Scarth. It doesn't bear thinking about. Of course, any murderer ingenious enough to concoct such a thing would have been far too clever to drop out two noughts; he would have been content to change the milligrams into centigrams, and risk a recovery. No sane chemist would have dispensed the pills in decimals. But we are getting off the facts, and I promised to meet Doctor Alt on his last round. If I may tell him, in vague terms, that you at least think there may have been some mistake, other than the culpable one that has been laid at his door, I shall go away less uneasy about my unwarrantable intrusion than I can assure you I was in making it."

It was strange how the balance of personality had shifted during an interview which Scarth himself was now eager to extend. He had no longer the mesmeric martinet who had tamed an unruly audience at sight; the last of Mr. Jingle's snap had long been in abeyance. And yet there was just one more suggestion of that immortal, in the rather dilapidated trunk from which the swarthy exquisite now produced a bottle of whisky, very properly locked up out of Laverick's reach. And weakness of will could not be imputed to the young man who induced John Dollar to cement their acquaintance with a thimbleful.

III

It was early morning in the same week; the crime doctor lay brooding over the most complicated case that had yet come his way. More precisely it was two cases, but so closely related that it took a strong mind to consider them apart, a stronger will to confine each to the solitary brain-cell that it deserved. Yet the case of young Laverick was not only much the simpler of the two, but infinitely the more congenial to John Dollar, and not the one most on his nerves.

It was too simple altogether. A year ago the boy had been all right, wild only as a tobogganer, lucky to have got off with a few stitches in his ear. Dollar heard all about that business from Doctor Alt, and only too much about Jack Laverick's subsequent record from other informants. It was worthy of the Welbeck Street confessional. His career at Oxford had come to a sudden ignominious end. He had forfeited his motoring license for habitually driving to the public danger, and on the last occasion had barely escaped imprisonment for his condition at the wheel. He had caused his own mother to say advisedly that she would "sooner see him in his coffin than going on in this dreadful way"; in writing she had said it, for Scarth had shown the letter addressed to him as her "last and only hope" for Jack; and yet even Scarth was powerless to prevent that son of Belial from getting "flown with insolence and wine" more nights than not. Even last night it had happened, at the masked ball, on the eve of this morning's races! Whose fault would it be if he killed himself on the ice-run after all?

Dollar writhed as he thought upon this case; yet it was not the case that had brought him out from England, not the reason of his staying out longer than he had dreamed of doing when Alt's telegram arrived. It was not, indeed, about Jack Laverick that poor Alt had telegraphed at all. And yet between them what a job they could have made of the unfortunate youth!

It was Dollar's own case over again—yet he had not been called in—neither of them had!

Nevertheless, when all was said that could be said to himself, or even to Alt—who did not quite agree—Laverick's was much the less serious matter; and John Dollar had turned upon the other side, and was grappling afresh with the other case, when his door opened violently without a knock, and an agitated voice spoke his name.

"It's me—Edenborough," it continued in a hurried whisper. "I want you to get into some clothes and come up to the ice-run as quick as possible!"

"Why? What has happened?" asked the doctor, jumping out of bed as Edenborough drew the curtains.

"Nothing yet. I hope nothing will——"

"But something has!" interrupted the doctor. "What's the matter with your eye?"

"I'll tell you as you dress, only be as quick as you can. Did you forget it was the toboggan races this morning? They're having them at eight instead of nine, because of the sun, and it's ten to eight now. Couldn't you get into some knickerbockers and stick a sweater over all the rest? That's what I've done—wish I'd come to you first. They'll want a doctor if we don't make haste!"

"I wish you'd tell me about your eye," said Dollar, already in his stockings.

"My eye's all right," returned Edenborough, going to the glass. "No, by jove, it's blacker than I thought, and my head's still singing like a kettle. I shouldn't have thought Laverick could hit so hard—drunk or sober."

"That madman?" cried Dollar, looking up from his laces. "I thought he turned in early for once in a way?"

"He was up early, anyhow," said Edenborough, grimly; "but I'll tell you the whole thing as we go up to the run, and I don't much mind who hears me. He's a worse hat even than we thought. I caught him tampering with the toboggans at five o'clock this morning!"

"Which toboggans?"

"One of the lot they keep in a shed just under our window, at the back of the hotel. I was lying awake and I heard something. It was like a sort of filing, as if somebody was breaking in somewhere. I got up and looked out, and thought I saw a light. Lucy was fast asleep; she is still, by the way, and doesn't know a thing."

"I'm ready," said Dollar. "Go on when we get outside."

It was a very pale blue morning, not a scintilla of sunlight in the valley, neither shine nor shadow upon clambering forest or overhanging rocks. Somewhere behind their jagged peaks the sun must have risen, but as yet no snowy facet winked the news to Winterwald, and the softer summits lost all character against a sky only less white than themselves.

The village street presented no difficulties to Edenborough's gouties and the doctor's nails; but there were other people in it, and voices travel in a frost over silent snow. On the frozen path between the snow-fields, beyond the village, nails were not enough, and the novice depending upon them stumbled and slid as the elaborated climax of Edenborough's experience induced even more speed.

"It was him all right—try the edge, doctor, it's less slippy. It was that young brute in his domino, as if he'd never been to bed at all, and me in my dressing-gown not properly awake. We should have looked a funny pair in—have my arm, doctor."

"Thanks, George."

"But his electric lamp was the only light. He didn't attempt to put it out. 'Just tuning up my toboggan,' he whispered. 'Come and have a look.' I didn't and don't believe it was his own toboggan; it was probably that Captain Strong's, he's his most dangerous rival; but, as I tell you, I was just going to look when the young brute hit me full in the face without a moment's warning. I went over like an ox, but I think the back of my head must have hit something. There was daylight in the place when I opened the only eye I could."

"Had he locked you in?"

"No; he was too fly for that; but I simply couldn't move till I heard voices coming, and then I only crawled behind a stack of garden chairs and things. It was Strong and another fellow—they did curse to find the whole place open! I nearly showed up and told my tale, only I wanted to tell you first."

"I'm glad you have, George."

"I knew your interest in the fellow—besides, I thought it was a case for you," said George Edenborough simply. "But it kept me prisoner till the last of the toboggans had been taken out—I only hope it hasn't made us too late!"

His next breath was a devout thanksgiving, as a fold in the glistening slopes showed the top of the ice-run, and a group of men in sweaters standing out against the fir-trees on the crest. They seemed to be standing very still. Some had their padded elbows lifted as though they were shading their eyes. But there was no sign of a toboggan starting, no sound of one in the invisible crevice of the run. And now man after man detached himself from the group, and came leaping down the subsidiary snow-track meant only for ascent.

But John Dollar and George Edenborough did not see all of this. A yet more ominous figure had appeared in their own path, had grown into Mostyn Scarth, and stood wildly beckoning to them both.

"It's Jack!" he shouted across the snow. "He's had a smash—self and toboggan—flaw in a runner. I'm afraid he's broken his leg."

"Only his leg!" cried Dollar, but not with the least accent of relief. The tone made Edenborough wince behind him, and Scarth in front look round. It was as though even the crime doctor thought Jack Laverick better dead.

He lay on a litter of overcoats, the hub of a wheel of men that broke of itself before the first doctor on the scene. He was not even insensible, neither was he uttering moan or groan; but his white lips were drawn away from his set teeth, and his left leg had an odd look of being no more a part of him than its envelope of knickerbocker and stocking.

"It's a bu'st, doctor, I'm afraid," the boy ground out as Dollar knelt in the snow. "Hurting? A bit—but I can stick it."

Courage was the one quality he had not lost during the last year; nobody could have shown more during the slow and excruciating progress to the village, on a bobsleigh carried by four stumbling men; everybody was whispering about it. Everybody but the crime doctor, who headed the little procession with a face in keeping with the tone which had made Edenborough wince and Scarth look round.

The complex case of the night—this urgent one—both were forgot in Dollar's own case of years ago. He was back again in another Winterwald, another world. It was no longer a land of Christmas-trees growing out of mountains of Christmas cake; the snow melted before his mind's eye; he was hugging the shadows in a street of toy-houses yielding resin to an August sun, between green slopes combed with dark pines, under a sky of intolerable blue. And he was in despair; all Harley Street could or would do nothing for him. And then—and then—some forgotten ache or pain had taken him to the little man—the great man—down this very turning to the left, in the little wooden house tucked away behind the shops.

How he remembered every landmark—the handrail down the slope—the little porch—the bare stairs, his own ladder between death and life—the stark surgery with its uncompromising appliances in full view! And now at last he was there with such another case as his own—the minor case that he had yet burned to bring there—and there was Alt to receive them in the same white jacket and with the same simple countenance as of old!

They might have taken him on to the hotel, as Scarth indeed urged strongly; but the boy himself was against another yard, though otherwise a hero to the end.

"Chloroform?" he cried faintly. "Can't I have my beastly leg set without chloroform? You're not going to have it off, are you? I can stick anything short of that."

The two doctors retired for the further consideration of a point on which they themselves were not of one mind.

"It's the chance of our lives, and the one chance for him," urged Dollar vehemently. "It isn't as if it were such a dangerous operation, and I'll take sole responsibility."

"But I am not sure you have been right," demurred the other. "He has not even had concussion, a year ago. It has been only the ear."

"There's a lump behind it still. Everything dates from when it happened; there's some pressure somewhere that has made another being of him. It's a much simpler case than mine, and you cured me. Alt, if you had seen how his own mother wrote about him, you would be the very last man to hesitate!"

"It is better to have her consent."

"No—nobody's—the boy himself need never know. There's a young bride here who'll nurse him like an angel and hold her tongue till doomsday. She and her husband may be in the secret, but not another soul!"

And when Jack Laverick came out of chloroform, to feel a frosty tickling under the tabernacle of bedclothes in which his broken bone was as the Ark, the sensation was less uncomfortable than he expected. But that of a dull deep pain in the head drew his first complaint, as an item not in the estimate.

"What's my head all bandaged up for?" he demanded, fingering the turban on the pillow.

"Didn't you know it was broken, too?" said Lucy Edenborough gravely. "I expect your leg hurt so much more that you never noticed it!"

IV

Ten days later Mostyn Scarth called at Doctor Alt's, to ask if he mightn't see Jack at last. He had behaved extremely well about the whole affair; others in his position might easily have made trouble. But there had been no concealment of the fact that injuries were not confined to the broken leg, and the mere seat of the additional mischief was enough for a man of sense. It is not the really strong who love to display their power. Scarth not only accepted the situation, but voluntarily conducted the correspondence which kept poor Mrs. Laverick at half Europe's length over the critical period. He had merely stipulated to be the first to see the convalescent, and he took it as well as ever when Dollar shook his head once more.

"It's not our fault this time, Mr. Scarth. You must blame the sex that is privileged to change its mind. Mrs. Laverick has arrived without a word of warning. She is with her son at this moment, and you'll be glad to hear that she thinks she finds him an absolutely changed character—or, rather, what he was before he ever saw Winterwald a year ago. I may say that this seems more or less the patient's own impression about himself."

"Glad!" cried Scarth, who for the moment had seemed rather staggered. "I'm more than glad; I'm profoundly relieved! It doesn't matter now whether I see Jack or not. Do you mind giving him these magazines and papers, with my love? I am thankful that my responsibility's at an end."

"The same with me," returned the crime doctor. "I shall go back to my work in London with a better conscience than I had when I left it—with something accomplished—something undone that wanted undoing."

He smiled at Scarth across the flap of an unpretentious table, on which lay the literary offering in all its glory of green and yellow wrappers; and Scarth looked up without a trace of pique, but with an answering twinkle in his own dark eyes.

"Alt exalted—restored to favor—Jack reformed character—born again—forger forgot—forging ahead, eh?"

It was his best Mr. Jingle manner; indeed, a wonderfully ready and ruthless travesty of his own performance on the night of Dollar's arrival. And that kindred critic enjoyed it none the less for a second strain of irony, which he could not but take to himself.

"I have not forgot anybody, Mr. Scarth."

"But have you discovered who did the forgery?"

"I always knew."

"Have you tackled him?"

"Days ago!"

Scarth looked astounded. "And what's to happen to him, doctor?"

"I don't know." The doctor gave a characteristic shrug. "It's not my job; as it was, I'd done all the detective business, which I loathe."

"I remember," cried Scarth. "I shall never forget the way you went through that prescription, as though you had been looking over the blighter's shoulder! Not an expert—modest fellow—pride that apes!"

And again Dollar had to laugh at the way Mr. Jingle wagged his head, in spite of the same slightly caustic undercurrent as before.

"That was the easiest part of it," he answered, "although you make me blush to say so. The hard part was what reviewers of novels call the 'motivation.'"

"But you had that in Schickel's spite against Alt."

"It was never quite strong enough to please me."

"Then what was the motive, doctor?"

"Young Laverick's death."

"Nonsense!"

"I wish it were, Mr. Scarth."

"But who is there in Winterwald who could wish to compass such a thing?"

"There were more than two thousand visitors over Christmas, I understand," was the only reply.

It would not do for Mostyn Scarth. He looked less than politely incredulous, if not less shocked and rather more indignant than he need have looked. But the whole idea was a reflection upon his care of the unhappy youth. And he said so in other words, which resembled those of Mr. Jingle only in their stiff staccato brevity.

"Talk about 'motivation'!—I thank you, doctor, for that word—but I should thank you even more to show me the thing itself in your theory. And what a way to kill a fellow! What a roundabout, risky way!"

"It was such a good forgery," observed the doctor, "that even Alt himself could hardly swear that it was one."

"Is he your man?" asked Scarth, in a sudden whisper, leaning forward with lighted eyes.

The crime doctor smiled enigmatically. "It's perhaps just as lucky for him, Scarth, that at least he could have had nothing to do with the second attempt upon his patient's life."

"What second attempt?"

"The hand that forged the prescription, Scarth, with intent to poison young Laverick, was the one that also filed the flaw in his toboggan, in the hope of breaking his neck."

"My dear doctor," exclaimed Mostyn Scarth, with a pained shake of the head, "this is stark, staring madness!"

"I only hope it was—in the would-be murderer," rejoined Dollar gravely. "But he had a lot of method; he even did his bit of filing—a burglar couldn't have done it better—in the domino Jack Laverick had just taken off!"

"How do you know he had taken it off? How do you know the whole job wasn't one of Jack's drunken tricks?"

"What whole job?"

"The one you're talking about—the alleged tampering with his toboggan," replied Scarth, impatiently.

"Oh! I only thought you meant something more." Dollar made a pause. "Don't you feel it rather hot in here, Scarth?"

"Do you know, I do!" confessed the visitor, as though it were Dollar's house and breeding had forbidden him to volunteer the remark. "It's the heat of this stove, with the window shut. Thanks so much, doctor!"

And he wiped his strong, brown, beautifully shaven face; it was one of those that require shaving more than once a day, yet it was always glossy from the razor; and he burnished it afresh with a silk handkerchief that would have passed through a packing-needle's eye.

"And what are you really doing about this—monster?" he resumed, as who should accept the monster's existence for the sake of argument.

"Nothing, Scarth."

"Nothing? You intend to do nothing at all?"

Scarth had started, for the first time; but he started to his feet, while he was about it, as though in overpowering disgust.

"Not if he keeps out of England," replied the crime doctor, who had also risen. "I wonder if he's sane enough for that?"

Their four eyes met in a protracted scrutiny, without a flicker on either side.

"What I am wondering," said Scarth deliberately, "is whether this Frankenstein effort of yours exists outside your own imagination, Doctor Dollar."

"Oh! he exists all right," declared the doctor. "But I am charitable enough to suppose him mad—in spite of his method and his motive."

"Did he tell you what that was?" asked Scarth with a sneer.

"No; but Jack did. He seems to have been in the man's power—under his influence—to an extraordinary degree. He had even left him a wicked sum in a will made since he came of age. I needn't tell you that he has now made another, revoking——"

"No, you need not!" cried Mostyn Scarth, turning livid at the last moment. "I've heard about enough of your mares' nests and mythical monsters. I wish you good morning, and a more credulous audience next time."

"That I can count upon," returned the doctor at the door. "There's no saying what they won't believe—at Scotland Yard!"