We were all grave enough and very quiet, however, when we reached the large building where Mrs.

Conway had her apartment. McKnight left the power on, in case we might want to make a quick get-away, and Hotchkiss gave a final look at the revolver. I had no weapon. Somehow it all seemed melodramatic to the verge of farce. In the doorway Hotchkiss was a half dozen feet ahead; Richey fell back beside me. He dropped his affectation of gayety, and I thought he looked tired. "Same old Sam, I suppose?" he asked.

"Same, only more of him."

"I suppose Alison was there? How is she?" he inquired irrelevantly.

"Very well. I did not see her this morning."

Hotchkiss was waiting near the elevator. McKnight put his hand on my arm. "Now, look here, old man," he said, "I've got two arms and a revolver, and you've got one arm and a splint. If Hotchkiss is right, and there is a row, you crawl under a table."

"The deuce I will!" I declared scornfully.

We crowded out of the elevator at the fourth floor, and found ourselves in a rather theatrical hallway of draperies and armor. It was very quiet; we stood uncertainly after the car had gone, and looked at the two or three doors in sight. They were heavy, covered with metal, and sound proof. From somewhere above came the metallic accuracy of a player-piano, and through the open window we could hear - or feel - the throb of the Cannonball's engine.

"Well, Sherlock," McKnight said, "what's the next move in the game? Is it our jump, or theirs? You brought us here."

None of us knew just what to do next. No sound of conversation penetrated the heavy doors. We waited uneasily for some minutes, and Hotchkiss looked at his watch. Then he put it to his ear.

"Good gracious!" he exclaimed, his head c.o.c.ked on one side, "I believe it has stopped. I'm afraid we are late."

We were late. My watch and Hotchkiss' agreed at nine o clock, and, with the discovery that our man might have come and gone, our zest in the adventure began to flag. McKnight motioned us away from the door and rang the bell. There was no response, no sound within. He rang it twice, the last time long and vigorously, without result. Then he turned and looked at us.

"I don't half like this," he said. "That woman is in; you heard me ask the elevator boy. For two cents I'd - "

I had seen it when he did. The door was ajar about an inch, and a narrow wedge of rose-colored light showed beyond. I pushed the door a little and listened. Then, with both men at my heels, I stepped into the private corridor of the apartment and looked around. It was a square reception hall, with rugs on the floor, a tall mahogany rack for hats, and a couple of chairs. A lantern of rose-colored gla.s.s and a desk light over a writing-table across made the room bright and cheerful. It was empty.

None of us was comfortable. The place was full of feminine trifles that made us feel the weakness of our position. Some such instinct made McKnight suggest division.

"We look like an invading army," he said. "If she's here alone, we will startle her into a spasm. One of us could take a look around and - "

"What was that? Didn't you hear something?"

The sound, whatever it had been, was not repeated. We went awkwardly out into the hall, very uncomfortable, all of us, and flipped a coin. The choice fell to me, which was right enough, for the affairwas mine, primarily.

"Wait just inside the door," I directed, "and if Sullivan comes, or anybody that answers his description, grab him without ceremony and ask him questions afterwards."

The apartment, save in the hallway, was unlighted. By one of those freaks of arrangement possible only in the modern flat, I found the kitchen first, and was struck a smart and unexpected blow by a swinging door. I carried a handful of matches, and by the time I had pa.s.sed through a butler's pantry and a refrigerator room I was completely lost in the darkness. Until then the situation had been merely uncomfortable; suddenly it became grisly. From somewhere near came a long-sustained groan, followed almost instantly by the crash of something - gla.s.s or china - on the floor.

I struck a fresh match, and found myself in a narrow rear hallway. Behind me was the door by which I must have come; with a keen desire to get back to the place I had started from, I opened the door and attempted to cross the room. I thought I had kept my sense of direction, but I crashed without warning into what, from the resulting jangle, was the dining-table, probably laid for dinner. I cursed my stupidity in getting into such a situation, and I cursed my nerves for making my hand shake when I tried to strike a match. The groan had not been repeated.

I braced myself against the table and struck the match sharply against the sole of my shoe. It flickered faintly and went out. And then, without the slightest warning, another dish went off the table. It fell with a thousand splinterings; the very air seemed broken into crashing waves of sound. I stood still, braced against the table, holding the red end of the dying match, and listened. I had not long to wait; the groan came again, and I recognized it, the cry of a dog in straits. I breathed again.

"Come, old fellow," I said. "Come on, old man. "Let's have a look at you."

I could hear the thud of his tail on the floor, but he did not move. He only whimpered. There is something companionable in the presence of a dog, and I fancied this dog in trouble. Slowly I began to work my way around the table toward him.

"Good boy," I said, as he whimpered. "We'll find the light, which ought to be somewhere or other around here, and then - "

I stumbled over something, and I drew back my foot almost instantly. "Did I step on you, old man I exclaimed, and bent to pat him. I remember straightening suddenly and hearing the dog pad softly toward me around the table. I recall even that I had put the matches down and could not find them. Then, with a bursting horror of the room and its contents, of the gibbering dark around me, I turned and made for the door by which I had entered.

I could not find it. I felt along the endless wainscoting, past miles of wall. The dog was beside me, I think, but he was part and parcel now, to my excited mind, with the Thing under the table. And when, after aeons of search, I found a k.n.o.b and stumbled into the reception hall, I was as nearly in a panic as any man could be.

I was myself again in a second, and by the light from the hall I led the way back to the tragedy I had stumbled on. Bronson still sat at the table, his elbows propped on it, his cigarette still lighted, burning a hole in the cloth. Partly under the table lay Mrs. Conway face down. The dog stood over her and wagged his tail.

McKnight pointed silently to a large copper ashtray, filled with ashes and charred bits of paper.

"The notes, probably," he said ruefully. "He got them after all, and burned them before her. It was more than she could stand. Stabbed him first and then herself."

Hotchkiss got up and took off his hat. "They are dead," he announced solemnly, and took his note-book out of his hatband.

McKnight and I did the only thing we could think of - drove Hotchkiss and the dog out of the room, and closed and locked the door. "It's a matter for the police," McKnight a.s.serted. "I suppose you've got an officer tied to you somewhere, Lawrence? You usually have."

We left Hotchkiss in charge and went down-stairs. It was McKnight who first saw Johnson, leaning against a park railing across the street, and called him over. We told him in a few words what we had found, and he grinned at me cheerfully.

"After while, in a few weeks or months, Mr. Blakeley," he said, "when you get tired of monkeyingaround with the blood-stain and finger-print specialist up-stairs, you come to me. I've had that fellow you want under surveillance for ten days!"

CHAPTER x.x.x FINER DETAILS

At ten minutes before two the following day, Monday, I arrived at my office. I had spent the morning putting my affairs in shape, and in a trip to the stable. The afternoon would see me either a free man or a prisoner for an indefinite length of time, and, in spite of Johnson's promise to produce Sullivan, I was more prepared for the latter than the former.

Blobs was watching for me outside the door, and it was clear that he was in a state of excitement bordering on delirium. He did nothing, however, save to tip me a wink that meant "As man to man, I'm for you." I was too much engrossed either to reprove him or return the courtesy, but I heard him follow me down the hall to the small room where we keep outgrown lawbooks, typewriter supplies and, incidentally, our wraps. I was wondering vaguely if I would ever hang my hat on its nail again, when the door closed behind me. It shut firmly, without any particular amount of sound, and I was left in the dark. I groped my way to it, irritably, to find it locked on the outside. I shook it frantically, and was rewarded by a sibilant whisper through the keyhole.

"Keep quiet," Blobs was saying huskily. "You're in deadly peril. The police are waiting in your office, three of 'em. I'm goin' to lock the whole bunch in and throw the key out of the window."

"Come back here, you imp of Satan!" I called furiously, but I could hear him speeding down the corridor, and the slam of the outer office door by which he always announced his presence. And so I stood there in that ridiculous cupboard, hot with the heat of a steaming September day, musty with the smell of old leather bindings, littered with broken overshoes and handleless umbrellas. I was apoplectic with rage one minute, and choked with laughter the next. It seemed an hour before Blobs came back.

He came without haste, strutting with new dignity, and paused outside my prison door.

"Well, I guess that will hold them for a while," he remarked comfortably, and proceeded to turn the key. "I've got 'em fastened up like sardines in a can!" he explained, working with the lock. "Gee whiz!

you'd ought to hear 'em!" When he got his breath after the shaking I gave him, he began to splutter.

"How'd I know?" he demanded sulkily. "You nearly broke your neck gettin' away the other time. And I haven't got the old key. It's lost."

"Where's it lost?" I demanded, with another gesture toward his coat collar.

"Down the elevator shaft." There was a gleam of indignant satisfaction through his tears of rage and humiliation.

And so, while he hunted the key in the debris at the bottom of the shaft, I quieted his prisoners with the a.s.surance that the lock had slipped, and that they would be free as lords as soon as we could find the janitor with a pa.s.s-key. Stuart went down finally and discovered Blobs, with the key in his pocket, telling the engineer how he had tried to save me from arrest and failed. When Stuart came up he was almost cheerful, but Blobs did not appear again that day.

Simultaneous with the finding of the key came Hotchkiss, and we went in together. I shook hands with two men who, with Hotchkiss, made a not very animated group. The taller one, an oldish man, lean and hard, announced his errand at once.

"A Pittsburg warrant?" I inquired, unlocking my cigar drawer.

"Yes. Allegheny County has a.s.sumed jurisdiction, the exact locality where the crime was committed being in doubt." He seemed to be the spokesman. The other, shorter and rotund, kept an amiable silence."We hope you will see the wisdom of waiving extradition," he went on. "It will save time."

"I'll come, of course," I agreed. "The sooner the better. But I want you to give me an hour here, gentlemen. I think we can interest you. Have a cigar?"

The lean man took a cigar; the rotund man took three, putting two in his pocket.

"How about the catch of that door?" he inquired jovially. "Any danger of it going off again?" Really, considering the circ.u.mstances, they were remarkably cheerful. Hotchkiss, however, was not. He paced the floor uneasily, his hands under his coat-tails. The arrival of McKnight created a diversion; he carried a long package and a corkscrew, and shook hands with the police and opened the bottle with a single gesture.

"I always want something to cheer on these occasions," he said. "Where's the water, Blakeley?

Everybody ready?" Then in French he toasted the two detectives.

"To your eternal discomfiture," he said, bowing ceremoniously. "May you go home and never come back! If you take Monsieur Blakeley with you, I hope you choke."

The lean man nodded gravely. "Prosit," he said. But the fat one leaned back and laughed consumedly.

Hotchkiss finished a mental synopsis of his position, and put down his gla.s.s. "Gentlemen," he said pompously, "within five minutes the man you want will be here, a murderer caught in a net of evidence so fine that a mosquito could not get through."

The detectives glanced at each other solemnly. Had they not in their possession a sealskin bag containing a wallet and a bit of gold chain, which, by putting the crime on me, would leave a gap big enough for Sullivan himself to crawl through?

"Why don't you say your little speech before Johnson brings the other man, Lawrence?" McKnight inquired. "They won't believe you, but it will help them to understand what is coming."

"You understand, of course," the lean man put in gravely, "that what you say may be used against you."

"I'll take the risk," I answered impatiently.

It took some time to tell the story of my worse than useless trip to Pittsburg, and its sequel. They listened gravely, without interruption.

"Mr. Hotchkiss here," I finished, "believes that the man Sullivan, whom we are momentarily expecting, committed the crime. Mr. McKnight is inclined to implicate Mrs. Conway, who stabbed Bronson and then herself last night. As for myself, I am open to conviction."

"I hope not," said the stout detective quizzically. And then Alison was announced. My impulse to go out and meet her was forestalled by the detectives, who rose when I did. McKnight, therefore, brought her in, and I met her at the door.

"I have put you to a great deal of trouble," I said contritely, when I saw her glance around the room.

"I wish I had not - "

"It is only right that I should come," she replied, looking up at me. "I am the unconscious cause of most of it, I am afraid. Mrs. Dallas is going to wait in the outer office."

I presented Hotchkiss and the two detectives, who eyed her with interest. In her poise, her beauty, even in her gown, I fancy she represented a new type to them. They remained standing until she sat down.

"I have brought the necklace," she began, holding out a white-wrapped box, "as you asked me to."

I pa.s.sed it, unopened, to the detectives. "The necklace from which was broken the fragment you found in the sealskin bag," I explained. "Miss West found it on the floor of the car, near lower ten."

"When did you find it?" asked the lean detective, bending forward.

"In the morning, not long before the wreck."

"Did you ever see it before?"

"I am not certain," she replied. "I have seen one very much like it." Her tone was troubled. She glanced at me as if for help, but I was powerless.

"Where?" The detective was watching her closely. At that moment there came an interruption. The door opened without ceremony, and Johnson ushered in a tall, blond man, a stranger to all of us: Iglanced at Alison; she was pale, but composed and scornful. She met the new-coiner's eyes full, and, caught unawares, he took a hasty backward step.

"Sit down, Mr. Sullivan," McKnight beamed cordially. "Have a cigar? I beg your pardon, Alison, do you mind this smoke?"

"Not at all," she said composedly. Sullivan had had a second to sound his bearings.

"No - no, thanks," he mumbled. "If you will be good enough to explain - "

"But that's what you're to do," McKnight said cheerfully, pulling up a chair. "You've got the most attentive audience you could ask. These two gentlemen are detectives from Pittsburg, and we are all curious to know the finer details of what happened on the car Ontario two weeks ago, the night your father-in-law was murdered." Sullivan gripped the arms of his chair. "We are not prejudiced, either. The gentlemen from Pittsburg are betting on Mr. Blakeley, over there. Mr. Hotchkiss, the gentleman by the radiator, is ready to place ten to one odds on you. And some of us have still other theories."

"Gentlemen," Sullivan said slowly, "I give you my word of honor that I did not kill Simon Harrington, and that I do not know who did."

"Fiddlededee!" cried Hotchkiss, bustling forward. "Why, I can tell you - " But McKnight pushed him firmly into a chair and held him there.

"I am ready to plead guilty to the larceny," Sullivan went on. "I took Mr. Blakeley's clothes, I admit.

If I can reimburse him in any way for the inconvenience- The stout detective was listening with his mouth open. "Do you mean to say," he demanded, "that you got into Mr. Blakeley's berth, as he contends, took his clothes and forged notes, and left the train before the wreck?"

"Yes."

"The notes, then?"

"I gave them to Bronson yesterday. Much good they did him!" bitterly. We were all silent for a moment. The two detectives were adjusting themselves with difficulty to a new point of view; Sullivan was looking dejectedly at the floor, his hands hanging loose between his knees. I was watching Alison; from where I stood, behind her, I could almost touch the soft hair behind her ear.

"I have no intention of pressing any charge against you," I said with forced civility, for my hands were itching to get at him, "if you will give us a clear account of what happened on the Ontario that night."

Sullivan raised his handsome, haggard head and looked around at me. "I've seen you before, haven't I?" he asked. "Weren't you an uninvited guest at the Laurels a few days - or nights - ago? The cat, you remember, and the rug that slipped?"

"I remember," I said shortly. He glanced from me to Alison and quickly away.

"The truth can't hurt me," he said, "but it's devilish unpleasant. Alison, you know all this. You would better go out."

His use of her name crazed me. I stepped in front of her and stood over him. "You will not bring Miss West into the conversation," I threatened, "and she will stay if she wishes."

"Oh, very well," he said with a.s.sumed indifference. Hotchkiss just then escaped from Richey's grasp and crossed the room.

"Did you ever wear gla.s.ses?" he asked eagerly.

"Never." Sullivan glanced with some contempt at mine.

"I'd better begin by going back a little," he went on sullenly. "I suppose you know I was married to Ida Harrington about five years ago. She was a good girl, and I thought a lot of her. But her father opposed the marriage - he'd never liked me, and he refused to make any sort of settlement.

"I had thought, of course, that there would be money, and it was a bad day when I found out I'd made a mistake. My sister was wild with disappointment. We were pretty hard up, my sister and I."