One month later sailed another ship. In the depth of night the Arrow slipped her anchor, and stole away from the suspicious eyes of harbor officials into the Atlantic; a stout vessel, sailed with discretion, her trick being to avoid no encounters on the high seas and to seek none. Love and hope steered her course. Her bowsprit pointed, like the lance of a knight, at the power of England. Her north star was the freedom of a nation. War had nothing to do with her, however, though her mission was warlike: to prove that one hundred similar vessels might sail from various parts to the Irish coast, and land an army and its supplies without serious interference from the enemy. The crew was a select body of men, whose souls ever sought the danger of hopeless missions, as others seek a holiday. In spite of fine weather and bracing seas, the cloud of a lonely fate hung over the ship. Arthur alone was enthusiastic. Ledwith, feverish over slight success, because it roused the dormant appetite for complete success, and Honora, fed upon disappointment, feared that this expedition would prove ashen bread as usual; but the improvement in her father's health kept her cheerful. Doyle Grahame, always in high spirits, devoted his leisure to writing the book which was to bring him fame and much money. He described its motive and aim to his companions.

"It calls a halt," he said "on the senseless haste of Christians to take up such pagans as Matthew Arnold, and raises a warning cry against surrender to the pagan spirit which is abroad."

"And do you think that the critics will read it and be overcome?" asked Arthur.

"It will convince the critics, not that they are pagans, but that I am. They will review it, therefore, just to annoy me."

"You reason just like a critic, from anywhere to nowhere."

"The book will make a stir, nevertheless," and Doyle showed his confidence.

"It's to be a loud protest, and will tangle the supple legs of Henry Ward Beecher and other semi-pagans like a lasso."

"How about the legs of the publishers?"

"That's their lookout. I have nothing against them, and I hope at the close of the sale they will have nothing against me."

"When, where, with what title, binding and so forth?"

"Speak not overmuch to thy dentist," said Grahame slyly. "Already he knoweth too many of thy mouth's secrets."

The young men kept the little company alive with their pranks and their badinage. Grahame discovered in the Captain a rare personality, who had seen the globe in its entirety, particularly the underside, as a detective and secret service agent for various governments. He was a tall, slender man, rather like a New England deacon than a daring adventurer, with a refined face, a handsome beard, and a speaking, languid gray eye. He spent the first week in strict devotion to his duties, and in close observation of his passengers. In the second week Grahame had him telling stories after dinner for the sole purpose of diverting the sad and anxious thoughts of Honora, although Arthur hardly gave her time to think by the multiplied services which he rendered her. There came an afternoon of storm, followed by a nasty night, which kept all the passengers in the cabin; and after tea there, a demand was made upon Captain Richard Curran for the best and longest story in his repertory. The men lit pipes and cigars, and Honora brought her crotcheting. The rolling and tossing of the ship, the beating of the rain, and the roar of the wind, gave them a sense of comfort. The ship, in her element, proudly and smoothly rode the rough waves, showing her strength like a racer.

"Let us have a choice, Captain," said Grahame, as the officer settled himself in his chair. "You detectives always set forth your successes. Give us now a story of complete failure, something that remains a mystery till now."

"Mystery is the word," said Honora. "This is a night of mystery. But a story without an end to it——"

"Like the history of Ireland," said Ledwith dryly.

"Is the very one to keep us thinking and talking for a month," said Grahame. "Captain, if you will oblige us, a story of failure and of mystery."

"Such a one is fresh in my mind, for I fled from my ill-success to take charge of this expedition," said the Captain, whose voice was singularly pleasant. "The detective grows stale sometimes, as singers and musicians do, makes a failure of his simplest work, and has to go off and sharpen his wits at another trade. I am in that condition. For twenty months I sought the track of a man, who disappeared as if the air absorbed him where he last breathed. I did not find him. The search gave me a touch of monomania. For two months I have not been able to rest upon meeting a new face until satisfied its owner was not—let us say, Tom Jones."

"Are you satisfied, then," said Arthur, "that we are all right?"

"He was not an Irishman, but a Puritan," replied the Captain, "and would not be found in a place like this. I admit I studied your faces an hour or so, and asked about you among the men, but under protest. I have given up the pursuit of Tom Jones, and I wish he would give up the pursuit of me. I had to quiet my mind with some inquiries."

"Was there any money awaiting Tom? If so, I might be induced to be discovered," Grahame said anxiously.

"You are all hopeless, Mr. Grahame. I have known you and Mr. Ledwith long enough, and Mr. Dillon has his place secure in New York——"

"With a weak spot in my history," said Arthur. "I was off in California, playing bad boy for ten years."

The Captain waved his hand as admitting Dillon's right to his personality.

"In October nearly two years ago the case of Tom Jones was placed in my care with orders to report at once to Mrs. Tom. The problem of finding a lost man is in itself very simple, if he is simply lost or in hiding. You follow his track from the place where he was last seen to his new abode. But around this simple fact of disappearance are often grouped the interests of many persons, which make a tangle worse than a poor fisherman's line. A proper detective will make no start in his search until the line is as straight and taut as if a black bass were sporting at the other end of it."

All the men exchanged delighted glances at this simile.

"I could spin this story for three hours straight talking of the characters who tangled me at the start. But I did not budge until I had unraveled them every one. Mrs. Jones declared there was no reason for the disappearance of Tom; his aunt Quincy said her flightiness had driven him to it; and Cousin Jack, Mrs. Tom's adviser, thought it just a freak after much dissipation, for Tom had been acting queerly for months before he did the vanishing act. The three were talking either from spleen or the wish to hide the truth. When there was no trace of Tom after a month of ordinary searching much of the truth came out, and I discovered the rest. Plain speech with Mrs. Tom brought her to the half-truth. She was told that her husband would never be found if the detective had to work in the dark. She was a clever woman, and very much worried, for reasons, over her husband's disappearance. It was something to have her declare that he had suspected her fidelity, but chiefly out of spleen, because she had discovered his infidelity. A little sifting of many statements, which took a long time, for I was on the case nearly two years, as I said, revealed Mrs. Tom as a remarkable woman. In viciousness she must have been something of a monster, though she was beautiful enough to have posed for an angel. Her corruption was of the marrow. She breathed crime and bred it. But her blade was too keen. She wounded herself too often. Grit and ferocity were her strong points. We meet such women occasionally. When she learned that I knew as much about her as need be, she threw off hypocrisy, and made me an offer of ten thousand dollars to find her husband."

"I felt sure then of the money. Disappearance, for a living man, if clever people are looking for him, is impossible nowadays. I can admit the case of a man being secretly killed or self-buried, say, for instance, his wandering into a swamp and there perishing: these cases of disappearance are common. But if he is alive he can be found."

"Why are you so sure of that?" said Arthur.

"Because no man can escape from his past, which is more a part of him than his heart or his liver," said Curran. "That past is the pathway which leads to him. If you have it, it's only a matter of time when you will have him."

"Yet you failed to find Tom Jones."

"For the time, yes," said the Captain with an eloquent smile. "Then, I had an antagonist of the noblest quality. Tom Jones was a bud of the Mayflower stock. All his set agreed that he was an exceptional man: a clean, honest, upright chap, the son of a soldier and a peerless mother, apparently an every-day lad, but really as fine a piece of manhood as the world turns out. Anyhow, I came to that conclusion about him when I had studied him through the documents. What luck threw him between the foul jaws of his wife I can't say. She was a——"

The detective coughed before uttering the word, and looked at the men as he changed the form of his sentence.

"She was a cruel creature. He adored her, and she hated him, and when he was gone slandered him with a laugh, and defiled his honest name."

"Oh," cried Honora with a gasp of pain, "can there be such women now? I have read of them in history, but I always felt they were far off——"

"I hope they are not many," said the Captain politely, "but in my profession I have met them. Here was a case where the best of men was the victim of an Agrippina."

"Poor, dear lad," sighed she, "and of course he fled from her in horror."

"He was a wonder, Miss Ledwith. Think what he did. Such a man is more than a match for such a woman. He discovered her unfaithfulness months before he disappeared. Then he sold all his property, turning all he owned into money, and transferred it beyond any reach but his own, leaving his wife just what she brought him—an income from her parents of fifteen hundred a year: a mere drop to a woman whom he had dowered with a share in one hundred thousand. Though I could not follow the tracks of his feet, I saw the traces of his thoughts as he executed his scheme of vengeance. He discovered her villainy, he would have no scandal, he was disgusted with life, so he dropped out of it with the prize for which she had married him, and left her like a famished wolf in the desert. It would have satisfied him to have seen her rage and dismay, but he was not one of the kind that enjoys torture."

"I watched Mrs. Tom for months, and felt she was the nearest thing to a demon I had ever met. Well, I worked hard to find Tom. We tried many tricks to lure him from his hiding-place, if it were near by, and we followed many a false trail into foreign lands. The result was dreadful to me. We found nothing. When a child was born to him, and the fact advertised, and still he did not appear, or give the faintest sign, I surrendered. It would be tedious to describe for you how I followed the sales of his property, how I examined his last traces, how I pursued all clues, how I wore myself out with study. At the last I gave out altogether and cut the whole business. I was beginning to have Tom on the brain. He came to live on my nerves, and to haunt my dreams, and to raise ghosts for me. He is gone two years, and Mrs. Tom is in Europe with her baby and Tom's aunt Quincy. When I get over my present trouble, and get back a clear brain, I shall take up the search. I shall find him yet. I'd like to show some of the documents, but the matter is still confidential, and I must keep quiet, though I don't suppose you know any of the parties. When I find him I shall finish the story for you."

"You will never find him," said Honora with emphasis. "That fearful woman shattered his very soul. I know the sort of a man he was. He will never go back. If he can bear to live, it will be because in his obscurity God gave him new faith and hope in human nature, and in the woman's part of it."

"I shall find him," said the detective.

"You won't," said Grahame. "I'll wager he has been so close to you all this time, that you cannot recognize him. That man is living within your horizon, if he's living at all. Probably he has aided you in your search. You wouldn't be the first detective fooled in that game."

The Captain made no reply, but went off to see how his ship was bearing the storm. The little company fell silent, perhaps depressed by the sounds of tempest without and the thought of the poor soul whose departure from life had been so strange. Arthur sat thinking of many things. He remembered the teaching that to God the past, present, and future are as one living present. Here was an illustration: the old past and the new present side by side to-night in the person of this detective. What a giant hand was that which could touch him, and fail to seize only because the fingers did not know their natural prey. No doubt that the past is more a part of a man than his heart, for here was every nerve of his body tingling to turn traitor to his will. Horace Endicott, so long stilled that he thought him dead, rose from his sleep at the bidding of the detective, and fought to betray Arthur Dillon. The blush, the trembling of the hands, the tension of the muscles, the misty eye, the pallor of the cheek, the tremulous lip, the writhing tongue, seemed to put themselves at the service of Endicott, and to fight for the chance to betray the secret to Curran. He sat motionless, fighting, fighting; until after a little he felt a delightful consciousness of the strength of Dillon, as of a rampart which the Endicott could not overclimb. Then his spirits rose, and he listened without dread to the story. How pitiful! What a fate for that splendid boy, the son of a brave soldier and a peerless mother! A human being allied with a beast! Oh, tender heart of Honora that sighed for him so pitifully! Oh, true spirit that recognized how impossible for Horace Endicott ever to return! Down, out of sight forever, husband of Agrippina! The furies lie in wait for thee, wretched husband of their daughter! Have shame enough to keep in thy grave until thou goest to meet Sonia at the judgment seat!

Captain Curran was not at all flattered by the deep interest which Arthur took for the next two days in the case of Tom Jones; but the young man nettled him by his emphatic assertions that the detective had adopted a wrong theory as to the mysterious disappearance. They went over the question of motives and of methods. The shrewd objections of Dillon gave him favor in Curran's eyes. Before long the secret documents in the Captain's possession were laid before him under obligations of secrecy. He saw various photographs of Endicott, and wondered at the blindness of man; for here side by side were the man sought and his portrait, yet the detective could not see the truth. Was it possible that the exterior man had changed so thoroughly to match the inner personality which had grown up in him? He was conscious of such a change. The mirror which reflected Arthur Dillon displayed a figure in no way related to the portrait.

"It seems to me," said Arthur, after a study of the photograph, "that I would be able to reach that man, no matter what his disguise."

"Disguises are mere veils," said Curran, "which the trained eye of the detective can pierce easily. But the great difficulty lies in a natural disguise, in the case where the man's appearance changes without artificial aids. Here are two photographs which will illustrate my meaning. Look at this."

Arthur saw a young and well-dressed fellow who might have been a student of good birth and training.

"Now look at this," said the Captain, "and discover that they picture one and the same individual, with a difference in age of two years."

The second portrait was a vigorous, rudely-dressed, bearded adventurer, as much like the first as Dillon was like Grahame. Knowing that the portraits stood for the same youth, Arthur could trace a resemblance in the separate features, but in the ensemble there was no likeness.

"The young fellow went from college to Africa," said Curran, "where he explored the wilderness for two years. This photograph was taken on his return from an expedition. His father and mother, his relatives and friends, saw that picture without recognizing him. When told who it was, they were wholly astonished, and after a second study still failed to recognize their friend. What are you going to do in a case of that kind? You or Grahame or Ledwith might be Tom Jones, and how could I pierce such perfect and natural disguises."

"Let me see," said Arthur, as he stood with Endicott's photograph in his hand and studied the detective, "if I can see this young man in you."

Having compared the features of the portrait and of the detective, he had to admit the absence of a likeness. Handing the photograph to the Captain he said,

"You do the same for me."

"There is more likelihood in your case," said Curran, "for your age is nearer that of Tom Jones, and youth has resemblances of color and feature."

He studied the photograph and compared it with the grave face before him.

"I have done this before," said Curran, "with the same result. You are ten years older than Tom Jones, and you are as clearly Arthur Dillon as he was Tom Jones."

The young man and the Captain sighed together.

"Oh, I brought in others, clever and experienced," said Curran, "to try what a fresh mind could do to help me, but in vain."

"There must have been something hard about Tom Jones," said Arthur, "when he was able to stay away and make no sign after his child was born."

The Captain burst into a mocking laugh, which escaped him before he could repress the inclination.

"He may never have heard of it, and if he did his wife's reputation——"

"I see," said Arthur Dillon smiling, convinced that Captain Curran knew more of Sonia Westfield than he cared to tell. At the detective's request the matter was dropped as one that did him harm; but he complimented Arthur on the shrewdness of his suggestions, which indeed had given him new views without changing his former opinions.