A feeling of helpless exasperation gripped Fenwick to the exclusion of all other emotions. Everything seemed to be going wrong just now; turn in any direction he pleased some obstacle blocked his path. Like most cunning criminals he could never quite dispossess himself of the idea that honesty and cleverness never went together. All honest men were fools of necessity, and therefore the legitimate prey of rogues like himself. And yet, though he was more or less confronted now with men of integrity, he was as helpless in their hands as if he had been a child. The maddening part of the whole thing was his inability to find anything to strike. He was like a general leading an army into the dark in a strange country, and knowing all the time that he had cunning unseen foes to fight.

Thoughts like these were uppermost in Fenwick's mind as he gazed in consternation about the little room from which Evors had vanished. So far as Fenwick knew, Evors had saved his life from Zary, but that had not prevented Fenwick from behaving in a dastardly fashion. It seemed to him as if Fate were playing into his hands by bringing Evors here at this moment. Hitherto he had found Evors such plastic material that he had never seriously considered him in the light of a foe. Now, for the first time, he saw how greatly he had been mistaken.

"Where can the fellow have gone to?" he muttered. "And whence comes his intimate knowledge of the house?"

He tapped the walls, he examined the floor, but there was no sign whatever of the means by which Evors had made good his escape.

Fenwick furiously rang the bell and demanded that the old caretaker should be sent to him at once. The man came to him, shambling unsteadily along and breathing fast as if he had been running. His aged features were quivering with some strange excitement, as Fenwick did not fail to notice, despite his own perturbation.

"What on earth is the matter with you?" he exclaimed. "You look as if you had seen a ghost! What is it? Speak up, man!"

"It isn't that, sir," the old man said in trembling tones. "It is a sight that I never expected to see again. A bit wild he was—aye, a rare handful at times, though we were all precious fond of him. And to see him back here again like this—"

"What the devil are you talking about?" Fenwick burst out furiously. "The old fool is in his second childhood."

"It was the young master," the caretaker babbled on. "Why, you could have knocked me down with a feather when he came in the house with you. As soon as I set eyes on Mr. Charles—"

"Mr. what?" Fenwick asked. "Oh, I see what you mean. You are speaking of
Mr. Evors, who came in with me."

"That's it, sir, that's it," the old man said. "Mr. Evors, only we used to call him Mr. Charles."

Fenwick began to understand.

"Let's have it out," he said. "Mr. Evors, whom you saw with me just now, is Lord Merton's only son?"

"That he be, sir, that he be. And to think that he should come home like this. It'll be a good day for the old house when he returns to settle down altogether."

Fenwick dismissed the old man with a contemptuous gesture. He had found out all he wanted to know, though his information had come to him as an unpleasant surprise. It was a strange coincidence that Fenwick should have settled upon Merton Grange for a dwelling-place, and thus had picked out the actual home of the young man who had suffered so much at his hands. But there was something beyond this that troubled Fenwick. It was a disturbing thought to know that Charles Evors could find his way about the house in this mysterious fashion. It was a still more disturbing thought to feel that Evors might be in league with those who were engaged in tracking down the so-called millionaire. There were certain things going on which it was imperative to keep a profound secret. Doubtless there were secret passages and panels in this ancient house, and Fenwick turned cold at the thought that perhaps prying eyes had already solved the problem of the little room at the end of the corridor. He lost no time in calling his parasites about him. In a few words he told them what had happened.

"Don't you see what it means?" he said. "Charles Evors is here, he has come back to his old home, and what is more he has come back to keep an eye on us. I feel pretty certain that someone is behind him. Very likely it is that devil Zary. If the police were to walk in now, guided by Evors, we should be caught like rats in a trap. I didn't want to trust that stuff to Blossett, but he must get away with it now without delay. There is a train about twelve o'clock to London, and he must get one of the servants to drive him over in a dogcart. Now don't stand gazing at me with your mouths open like that, for goodness knows how close the danger is. Get the stuff away at once."

The man Blossett came into the garden, a big cigar between his lips. He laughed in his insolent fashion when he was told of his errand. The hot blood was in Fenwick's face, but he had not time to quarrel with the swaggering Blossett.

"I thought you would come to your senses," the latter said. "Nobody like me to do a little thing of that sort. Now let me have the case and I'll be off without delay. Better put it in a Gladstone bag. If I have any luck I shall be back here to-night, and then we can share the bank-notes and there will be an end of the matter. You had better sink all the materials in the moat. Not that I am afraid of anything happening, myself."

Half an hour later Blossett was being bowled down the drive behind a fleet horse. A little later still, as the train pulled out of the station, Egan and Grady stood there watching it with rueful faces. Venner was with them, and smiled to himself, despite the unfortunate nature of the situation.

"I thought we had cut it a bit too fine," Grady said. "It is all the fault of that confounded watch of mine. Now what's the best thing to be done? Shall we telegraph to Scotland Yard and ask to have Blossett detained when he reaches Victoria?"

"I don't quite like the idea," Egan said. "If we were English detectives it wouldn't much matter, but I guess I don't want Scotland Yard to have the laugh of me like this. It may cost a deal of money, and I shall probably have to pay it out of my own pocket, but I am going to have a special train."

"My good man," Venner said, "it is absurd to think that you can get a special train at a roadside station like this. Probably they do things differently in America, but if you suggest a special to the station-master here, he will take you for an amiable lunatic. I have an idea that may work out all right, though it all depends upon whether the train that has gone out of the station is a fast or a slow one."

The inquiry proved the fact that the train was a slow one, stopping at every station. It would be quite two hours in reaching Victoria. Venner smiled with the air of a man who is well pleased with himself. He turned eagerly to his companions.

"I think I've got it," he said. "We will wound Fenwick with one of his own weapons. It will be the easiest thing in the world to got from here to Victoria well under two hours in a motor."

"I guess that's about true," Grady said, drily. "But what applies to the special equally applies to the motor. Where are we to get the machine from?"

"Borrow Fenwick's," Venner said. "I understand the working of a Mercedes, and, I know where the car is kept. If I go about this thing boldly, our success is assured. Then you can wait for me at the cross roads and I can pick you up."

"Well, you can try it on, sir," Egan said doubtfully. "If you fail we must telegraph to Scotland Yard."

But Venner had not the slightest intention of failing. There were no horses in the stable at Merton Grange, and consequently no helpers loafing about the yard. There stood the big car, and on a shelf all the necessaries for setting the machine in motion. In an incredibly short space of time Venner had backed the Mercedes into the yard; he turned her dexterously, and a moment later was speeding down a side avenue which led to the Park. The good old saying that fortune favors the brave was not belied in this instance, for Venner succeeded in reaching the high road without mishap. It was very long odds against his theft being discovered, at any rate, for some considerable time; and even if the car were missing, no one could possibly identify its loss with the chase after Blossett. It was consequently in high spirits that the trio set out on their journey. Naturally enough Venner was curious to know what the criminal charge would be.

"Though I have found out a good deal," he said, "I am still utterly at a loss to know what these fellows have been up to. Of course, I quite understand that there is some underhand business with regard to certain coins—but then those coins are real gold, and it would not pay anybody to counterfeit sovereigns worth twenty shillings apiece."

"You don't think so," Egan said, drily. "We shall be able to prove the contrary presently. But hadn't you better wait, sir, till the critical moment comes?"

"Very well," Venner laughed good-naturedly. "I'll wait and see what dramatic surprise you have in store for me."

The powerful car sped over the roads heedless of police traps or other troubles of that kind, and some time before the appointed hour for the arrival of Blossett's train in London they had reached Victoria. It was an easy matter to store the car in a neighboring hotel, and presently they had the satisfaction of seeing Blossett swagger from a first-class carriage with a heavy Gladstone bag in his hand. He called a cab and was rapidly driven off in the direction of the city. Egan in his turn called another cab, giving the driver strict injunctions to keep the first vehicle in sight. It was a long chase, but it came to an end presently outside an office in Walbrook. Blossett paid his man and walked slowly up a flight of steps, carrying his bag. He paused at length before a door which was marked "Private," and also placarded the information that here was the business place of one Drummond, commission agent. Scarcely had the door closed on Blossett than Egan followed without ceremony. He motioned the other two to remain behind; he had some glib story to tell the solitary clerk in the outer office, from whom he gleaned the information that Mr. Drummond was engaged on some particular business and could not see him for some time.

"Very well," he said; "I'll wait and read the paper."

He sat there patiently for some five minutes, his quick ears strained to catch the faintest sound of what was taking place in the inner office. There came presently the chink of metal, whereupon the watcher whistled gently and his comrade and Venner entered the room. Very coolly Egan crossed over and locked the door.

"Now, my young friend," he said to the astonished clerk, "you will oblige me by not making a single sound. I don't suppose for a moment you have had anything to do with this; in fact, from your bewildered expression, I am certain that you haven't. Now tell me how long have you been in your present situation."

"About three months," the clerk replied. "If you gentlemen happen to be police officers—"

"That is exactly what we are," Grady smiled. "Do you find business brisk—plenty of clients about?"

The clerk shook his head. He was understood to say that business was inclined to be slack. He was so frightened and uneasy that it was somewhat difficult to discern what he was talking about. From time to time there came sounds of tinkling metal from the inner office. Then Grady crossed the floor and opened the door. He stepped inside nimbly, there was a sudden cry, and then the voice of the detective broke out harshly.

"Now drop it," he said. "Keep your hands out of your pocket—there are three of us here altogether, and the more fuss you make the worse it will be for both of you. You know perfectly well who I am, Blossett; and we are old friends, too, Mr. Drummond, though I don't know you by that name. You will come with me—"

"But what's the charge?" Blossett blustered. "I am doing business with my friend here quite in a legitimate way."

"Counterfeit coining," Grady said crisply. "Oh, we know all about it, so you need not try to bluff it out in that way. I'll call a cab, and we can drive off comfortably to Bow Street."

All the swaggering impudence vanished from Blossett. As for his companion, he had not said a word from start to finish. It was about an hour later that Venner and his companions were seated at lunch at a hotel in Covent Garden, and Venner was impatiently waiting to hear what was the charge which had laid Blossett and his companion by the heels. Grady smiled as he drew from his pocket what appeared to be a brand new sovereign.

"This is it," he said. "A counterfeit. You wouldn't think so to look at it, would you? It appears to be perfectly genuine. If you will balance it on your finger you will find that it is perfect weight, and as to the finish it leaves nothing to be desired. And yet that coin is false, though it contains as much gold as any coin that you have in your purse."

"Now I begin to understand," Venner exclaimed. "I have already told you all about my discovery at the Empire Hotel, also what happened quite recently at Merton Grange. I could not for the life of me understand what those fellows had to gain by making sovereigns red-hot. Of course, I took them to be real sovereigns—"

"Well, so they are practically," Egan said. "They contain absolutely as much gold as an English coin of equal value. They are made from the metal Fenwick managed to loot from the Four Finger Mine."

"What, do you know all about that?" Venner cried.

"We know all about everything," Grady said gravely. "We have been tracking Fenwick for years, and it is a terrible indictment we shall have to lay against him when the proper time comes. We shall prove beyond the shadow of a doubt that he was one of the murderers of Mr. George Le Fenu —but we need not go into that now, for I see you are anxious to know all about the trick of the sovereigns. After Fenwick was compelled to abandon the Four Finger Mine, he found himself with a great deal less gold than he had expected. Then he hit upon the ingenious scheme which we are here to expose. His plan was to make sovereigns and half-sovereigns, and put them on the market as genuine coins. Now do you see what he had to gain by this ingenious programme?"