The foster-father and son, left for a few moments to themselves, had little to say, but sat looking into each other's faces with eyes full of meaning, each understanding what was in the other's heart.

At last, as they heard returning footsteps, the elder man spoke,--

"It was a good thing you went there, my boy; come what may, you will never regret it."

"Never!" the other replied with emphasis.

It seemed but a few moments ere hurried steps were heard along the corridor, followed by a light, familiar knock, and Mr. Sutherland entered.

"I recognized your voice at the 'phone, Mr. Barton," said the attorney, after greetings had been exchanged, "and something in its tone, aside from the general import of your message, led me to believe that the call was of special importance, therefore I lost no time in coming here."

"You were correct," replied the English barrister; "we have made a most important discovery, bearing not only upon the case in hand, but also upon the Mainwaring murder case."

"Ah-h!" responded the attorney with evident interest; then drawing his chair near the group seated about the open fire, he asked, with a swift glance about the room, "But where is your 'clerk,' Mr.

Barton? Should he not be present?"

"My 'clerk!'" replied Mr. Barton, with peculiar emphasis, and plainly appreciating the humor of the inquiry; "my 'clerk' is, I believe, at present engaged in most a.s.siduously cultivating the acquaintance of Ralph Mainwaring's coachman."

Then, as Mr. Sutherland elevated his eyebrows in mute inquiry, he continued,--

"The coachman, I have understood, is a recent acquisition, taken, I believe, upon the recommendation of this Merrick; and while he seems eminently satisfactory as a coachman, I have my doubts as to whether he will prove quite so satisfactory to his superior officer upon his return."

"Ah, I see!" e.j.a.c.u.l.a.t.ed the other; "he is what might be denominated a 'sub.'"

"Yes; and so exceedingly verdant that McCabe thought it worth while to make his acquaintance. But now to present business!"

Again the strange story was repeated, Mr. Sutherland listening with grave attention, which deepened as the recital proceeded, until, at its completion, he could scarcely restrain his enthusiasm; exultation was plainly written on his face, but there was a peculiar gentleness in his manner as he first approached his young client, saying in a low tone, as he cordially grasped his hand,--

"I realize, Mr. Mainwaring, all that this means to you, and I am sure you will understand me when I say that I congratulate you."

Harold Mainwaring bowed silently, and Mr. Sutherland, turning towards the English barrister, exclaimed, "This explains everything!

This will make our case absolutely incontrovertible; but, first, we must secure that man at all hazards and at any cost just as quickly as possible; think what a witness he will make!"

"Just what I had in mind" was the response, "and McCabe is the man to locate him if he is upon the face of the earth. But we must decide immediately upon our own course of action, for this will necessitate certain changes in our plans, and we must act at once, and, at the same time, with the utmost caution and secrecy."

Dinner was ordered and served in the privacy of their own apartments that they might be entirely free from intrusion or interruptions during their deliberations, and it was at a late hour when, their consultation ended, they gathered about the open fire with their cigars, awaiting, with much self-congratulation and cheerful talk, the return of the absent McCabe.

"Confound it!" exclaimed Mr. Barton, presently, glancing at his watch; "what in the deuce is keeping that fellow so late? If we had not especially wanted him, he would have been here two hours ago."

"Perhaps," suggested Mr. Sutherland, "he may have found the coachman more communicative than he antic.i.p.ated."

"He has doubtless struck some clue which he is following," was the reply; but at that instant there was a light tap at the door, and the man generally known as the English barrister's "clerk" entered.

"Well, Mac," said Mr. Barton, cheerfully, "'speak of the devil'--you know what follows! What luck to-night?"

"Very fair, sir," said the man, quietly taking in the situation at a glance, as he noted the eager, expectant faces of the four men, and, dropping into a chair near the group, he instantly a.s.sumed an att.i.tude of close attention.

Ordinarily, McCabe was, as Mr. Whitney had remarked, rather an insignificant looking man. He was below medium stature and somewhat dull in appearance, owing to the fact that he seemed to take little interest in his surroundings, while his face, when his eyes were concealed, as was generally the case, by the heavily drooping lids and long eyelashes, was absolutely expressionless. When, however, he raised his eyes and fixed them upon any one, the effect was much the same as though a search-light suddenly flashed in one's face; but this was only upon rare occasions, and few casual observers would dream of the keen perceptive faculties hidden beneath that quiet exterior.

"Tell us your story first, Mac," said Mr. Barton, after a moment's silence, thoroughly understanding his man, "ours will keep for a little bit."

"There's not much to tell, sir."

"How are you and the coachman coming on?"

"We'll not be very intimate after to-night, I'm thinking."

"How is that?" questioned the attorney, at the same time smiling broadly at his companions.

"Well, sir, there'll be no call for it, for one thing, as I've got all the points in the case I wanted; and for another, his chief returned this evening, and, from the few words I overheard upon his arrival, I don't think the coachman will feel over-confidential the next time he sees me," and McCabe smiled grimly to himself.

"So Merrick is back!" interposed Mr. Sutherland, laughing. "Did you and he meet?"

"Meet, sir? Ah, no, not much o' that! I heard a step coming up the stairs, and as I thought the room was hardly big enough for three, I excused myself to Mr. Jim Matheson--alias Matthews, the coachman--and made for the hall. We pa.s.sed each other at the head of the stairs, and I cluttered down, making as much racket as I could; then at the foot of the stairs I took off my boots and crept upstairs again, more to hear the fellow's voice than anything else, so I could recognize him afterwards."

"What did you hear?" inquired Mr. Barton, as McCabe paused to light a cigar which Mr. Sutherland had handed him.

"I heard him say, 'Who was that I pa.s.sed outside, Jim?' 'Only a cross-country friend of mine,' says Jim. 'What friends are you entertaining here in these quarters?' says he, kind o' sharp like.

'An' sure,' says Jim, 'it was only Dan McCoy, the clerk of the big London lawyer who has come over with the young Mr. Mainwaring I've heard you speak of, and a right clever fellow he is, too!' 'Clerk!'

he roars out, 'clerk, you blithering idiot! he's no more clerk than you are coachman, nor half so much, for you're fit for nothing but to take care of horses all your days! Do you want to know,'

says he, 'who you've been entertaining?' That's no more nor less than Dan McCabe, a Scotland Yard man they've brought over, n.o.body knows what for, but whatever his game, he's made you play into his hand! I didn't stay to hear more," McCabe concluded, "I got out."

"But how does this Merrick know you?" Mr. Barton inquired, as the laughter caused by McCabe's recital subsided.

"He doesn't know me, he only knows of me," the man replied. "I found that out an hour or two later, when I met him in a crowd at the Wellington Hotel;" the speaker glanced curiously in the direction of Harold Mainwaring for an instant, and then continued, "I knew him by his voice, but I spoke with him, and he had no idea who I was."

"But how has he heard of you?" persisted Mr. Barton.

"There was an American detective--a friend of his--who came over on the 'Campania' on the same trip with Mr. Mainwaring. He was following up a case in London, but he managed to keep his eye on Mr. Mainwaring and kept this Merrick posted of all that he was doing.

It was because of some remarks of his that I got wind of, that I determined from the first to get onto his game."

"Well, Mac," said Mr. Barton, tentatively, "are you ready to go to work now?"

The keen eyes flashed for an instant in the attorney's face, then the man answered quietly, "If you've nothing to tell me, I'm ready to go to work on my own hook and in my own way; if you've anything to say, I'll hear it."

Mr. Barton glanced at the others. "We had better tell McCabe what we have learned, and also just what our plans are."

The others bowed in a.s.sent, and the chairs were drawn closer together while Mr. Barton, in low tones, told, as briefly and clearly as possible, the discovery which they had made. McCabe listened to the attorney's story, but whether or not the secret were already guessed by him, his face gave no sign. When it was ended he glanced curiously at Harold Mainwaring.

"Mrs. LaGrange told you this?"

"She did."

"At what time, if you please, sir?"

"At about half-past five."

"Are you aware, sir, that, with the exception of her maid, you are probably the last person who saw Mrs. LaGrange living?"