Not only in the plaster, but through the lathing, the aperture extended. I reached into the opening, and three feet away, perhaps, I could touch the bricks of the part.i.tion wall. For some reason, the architect, in building the house, had left a s.p.a.ce there that struck me, even in the surprise of the discovery, as an excellent place for a conflagration to gain headway.

"You are sure the hole was not here yesterday?" I asked Liddy, whose expression was a mixture of satisfaction and alarm. In answer she pointed to the new cook's trunk-that necessary adjunct of the migratory domestic. The top was covered with fine white plaster, as was the floor. But there were no large pieces of mortar lying around-no bits of lathing. When I mentioned this to Liddy she merely raised her eyebrows. Being quite confident that the gap was of unholy origin, she did not concern herself with such trifles as a bit of mortar and lath. No doubt they were even then heaped neatly on a gravestone in the Casanova churchyard!

I brought Mr. Jamieson up to see the hole in the wall, directly after breakfast. His expression was very odd when he looked at it, and the first thing he did was to try to discover what object, if any, such a hole could have. He got a piece of candle, and by enlarging the aperture a little was able to examine what lay beyond. The result was nil. The trunk-room, although heated by steam heat, like the rest of the house, boasted of a fireplace and mantel as well. The opening had been made between the flue and the outer wall of the house. There was revealed, however, on inspection, only the brick of the chimney on one side and the outer wall of the house on the other; in depth the s.p.a.ce extended only to the flooring. The breach had been made about four feet from the floor, and inside were all the missing bits of plaster. It had been a methodical ghost.

It was very much of a disappointment. I had expected a secret room, at the very least, and I think even Mr. Jamieson had fancied he might at last have a clue to the mystery. There was evidently nothing more to be discovered: Liddy reported that everything was serene among the servants, and that none of them had been disturbed by the noise. The maddening thing, however, was that the nightly visitor had evidently more than one way of gaining access to the house, and we made arrangements to redouble our vigilance as to windows and doors that night.

Halsey was inclined to pooh-pooh the whole affair. He said a break in the plaster might have occurred months ago and gone unnoticed, and that the dust had probably been stirred up the day before. After all, we had to let it go at that, but we put in an uncomfortable Sunday. Gertrude went to church, and Halsey took a long walk in the morning. Louise was able to sit up, and she allowed Halsey and Liddy to a.s.sist her down-stairs late in the afternoon. The east veranda was shady, green with vines and palms, cheerful with cushions and lounging chairs. We put Louise in a steamer chair, and she sat there pa.s.sively enough, her hands clasped in her lap.

We were very silent. Halsey sat on the rail with a pipe, openly watching Louise, as she looked broodingly across the valley to the hills. There was something baffling in the girl's eyes; and gradually Halsey's boyish features lost their glow at seeing her about again, and settled into grim lines. He was like his father just then.

We sat until late afternoon, Halsey growing more and more moody. Shortly before six, he got up and went into the house, and in a few minutes he came out and called me to the telephone. It was Anna Whitcomb, in town, and she kept me for twenty minutes, telling me the children had had the measles, and how Madame Sweeny had botched her new gown.

When I finished, Liddy was behind me, her mouth a thin line.

"I wish you would try to look cheerful, Liddy," I groaned, "your face would sour milk." But Liddy seldom replied to my gibes. She folded her lips a little tighter.

"He called her up," she said oracularly, "he called her up, and asked her to keep you at the telephone, so he could talk to Miss Louise. A THANKLESS CHILD IS SHARPER THAN A SERPENT'S TOOTH."

"Nonsense!" I said bruskly. "I might have known enough to leave them. It's a long time since you and I were in love, Liddy, and-we forget."

Liddy sniffed.

"No man ever made a fool of me," she replied virtuously.

"Well, something did," I retorted.

CHAPTER XIX

CONCERNING THOMAS

"Mr. Jamieson," I said, when we found ourselves alone after dinner that night, "the inquest yesterday seemed to me the merest recapitulation of things that were already known. It developed nothing new beyond the story of Doctor Stewart's, and that was volunteered."

"An inquest is only a necessary formality, Miss Innes," he replied. "Unless a crime is committed in the open, the inquest does nothing beyond getting evidence from witnesses while events are still in their minds. The police step in later. You and I both know how many important things never transpired. For instance: the dead man had no key, and yet Miss Gertrude testified to a fumbling at the lock, and then the opening of the door. The piece of evidence you mention, Doctor Stewart's story, is one of those things we have to take cautiously: the doctor has a patient who wears black and does not raise her veil. Why, it is the typical mysterious lady! Then the good doctor comes across Arnold Armstrong, who was a graceless scamp-de mortuis-what's the rest of it?-and he is quarreling with a lady in black. Behold, says the doctor, they are one and the same."

"Why was Mr. Bailey not present at the inquest?"

The detective's expression was peculiar.

"Because his physician testified that he is ill, and unable to leave his bed."

"Ill!" I exclaimed. "Why, neither Halsey nor Gertrude has told me that."

"There are more things than that, Miss Innes, that are puzzling. Bailey gives the impression that he knew nothing of the crash at the bank until he read it in the paper Monday night, and that he went back and surrendered himself immediately. I do not believe it. Jonas, the watchman at the Traders' Bank, tells a different story. He says that on the Thursday night before, about eight-thirty, Bailey went back to the bank. Jonas admitted him, and he says the cashier was in a state almost of collapse. Bailey worked until midnight, then he closed the vault and went away. The occurrence was so unusual that the watchman pondered over it an the rest of the night. What did Bailey do when he went back to the Knickerbocker apartments that night? He packed a suit-case ready for instant departure. But he held off too long; he waited for something. My personal opinion is that he waited to see Miss Gertrude before flying from the country. Then, when he had shot down Arnold Armstrong that night, he had to choose between two evils. He did the thing that would immediately turn public opinion in his favor, and surrendered himself, as an innocent man. The strongest thing against him is his preparation for flight, and his deciding to come back after the murder of Arnold Armstrong. He was shrewd enough to disarm suspicion as to the graver charge?"

The evening dragged along slowly. Mrs. Watson came to my bedroom before I went to bed and asked if I had any arnica. She showed me a badly swollen hand, with reddish streaks running toward the elbow; she said it was the hand she had hurt the night of the murder a week before, and that she had not slept well since. It looked to me as if it might be serious, and I told her to let Doctor Stewart see it.

The next morning Mrs. Watson went up to town on the eleven train, and was admitted to the Charity Hospital. She was suffering from blood-poisoning. I fully meant to go up and see her there, but other things drove her entirely from my mind. I telephoned to the hospital that day, however, and ordered a private room for her, and whatever comforts she might be allowed.

Mrs. Armstrong arrived Monday evening with her husband's body, and the services were set for the next day. The house on Chestnut Street, in town, had been opened, and Tuesday morning Louise left us to go home. She sent for me before she went, and I saw she had been crying.

"How can I thank you, Miss Innes?" she said. "You have taken me on faith, and-you have not asked me any questions. Some time, perhaps, I can tell you; and when that time comes, you will all despise me,-Halsey, too."

I tried to tell her how glad I was to have had her but there was something else she wanted to say. She said it finally, when she had bade a constrained good-by to Halsey and the car was waiting at the door.

"Miss Innes," she said in a low tone, "if they-if there is any attempt made to-to have you give up the house, do it, if you possibly can. I am afraid-to have you stay."

That was all. Gertrude went into town with her and saw her safely home. She reported a decided coolness in the greeting between Louise and her mother, and that Doctor Walker was there, apparently in charge of the arrangements for the funeral. Halsey disappeared shortly after Louise left and came home about nine that night, muddy and tired. As for Thomas, he went around dejected and sad, and I saw the detective watching him closely at dinner. Even now I wonder-what did Thomas know? What did he suspect?

At ten o'clock the household had settled down for the night. Liddy, who was taking Mrs. Watson's place, had finished examining the tea-towels and the corners of the shelves in the cooling-room, and had gone to bed. Alex, the gardener, had gone heavily up the circular staircase to his room, and Mr. Jamieson was examining the locks of the windows. Halsey dropped into a chair in the living-room, and stared moodily ahead. Once he roused.

"What sort of a looking chap is that Walker, Gertrude?" he asked!

"Rather tall, very dark, smooth-shaven. Not bad looking," Gertrude said, putting down the book she had been pretending to read. Halsey kicked a taboret viciously.

"Lovely place this village must be in the winter," he said irrelevantly. "A girl would be buried alive here."

It was then some one rapped at the knocker on the heavy front door. Halsey got up leisurely and opened it, admitting Warner. He was out of breath from running, and he looked half abashed.

"I am sorry to disturb you," he said. "But I didn't know what else to do. It's about Thomas."

"What about Thomas?" I asked. Mr. Jamieson had come into the hall and we all stared at Warner.

"He's acting queer," Warner explained. "He's sitting down there on the edge of the porch, and he says he has seen a ghost. The old man looks bad, too; he can scarcely speak."

"He's as full of superst.i.tion as an egg is of meat," I said. "Halsey, bring some whisky and we will all go down."

No one moved to get the whisky, from which I judged there were three pocket flasks ready for emergency. Gertrude threw a shawl around my shoulders, and we all started down over the hill: I had made so many nocturnal excursions around the place that I knew my way perfectly. But Thomas was not on the veranda, nor was he inside the house. The men exchanged significant glances, and Warner got a lantern.

"He can't have gone far," he said. "He was trembling so that he couldn't stand, when I left."

Jamieson and Halsey together made the round of the lodge, occasionally calling the old man by name. But there was no response. No Thomas came, bowing and showing his white teeth through the darkness. I began to be vaguely uneasy, for the first time. Gertrude, who was never nervous in the dark, went alone down the drive to the gate, and stood there, looking along the yellowish line of the road, while I waited on the tiny veranda.

Warner was puzzled. He came around to the edge of the veranda and stood looking at it as if it ought to know and explain.

"He might have stumbled into the house," he said, "but he could not have climbed the stairs. Anyhow, he's not inside or outside, that I can see." The other members of the party had come back now, and no one had found any trace of the old man. His pipe, still warm, rested on the edge of the rail, and inside on the table his old gray hat showed that its owner had not gone far.

He was not far, after all. From the table my eyes traveled around the room, and stopped at the door of a closet. I hardly know what impulse moved me, but I went in and turned the k.n.o.b. It burst open with the impetus of a weight behind it, and something fell partly forward in a heap on the floor. It was Thomas-Thomas without a mark of injury on him, and dead.

CHAPTER XX

DOCTOR WALKER'S WARNING