She had waited in the billiard-room with Mr. Bailey, until the automobile had been ready. Then she had locked the door at the foot of the staircase, and, taking a lamp, had accompanied Mr. Bailey to the main entrance of the house, and had watched him cross the lawn. Instead of going at once to her room, she had gone back to the billiard-room for something which had been left there. The card-room and billiard-room were in darkness. She had groped around, found the article she was looking for, and was on the point of returning to her room, when she had heard some one fumbling at the lock at the east outer door. She had thought it was probably her brother, and had been about to go to the door, when she heard it open. Almost immediately there was a shot, and she had run panic-stricken through the drawing-room and had roused the house.

"You heard no other sound?" the coroner asked. "There was no one with Mr. Armstrong when he entered?"

"It was perfectly dark. There were no voices and I heard nothing. There was just the opening of the door, the shot, and the sound of somebody falling."

"Then, while you went through the drawing-room and up-stairs to alarm the household, the criminal, whoever it was, could have escaped by the east door?"

"Yes."

"Thank you. That will do."

I flatter myself that the coroner got little enough out of me. I saw Mr. Jamieson smiling to himself, and the coroner gave me up, after a time. I admitted I had found the body, said I had not known who it was until Mr. Jarvis told me, and ended by looking up at Barbara Fitzhugh and saying that in renting the house I had not expected to be involved in any family scandal. At which she turned purple.

The verdict was that Arnold Armstrong had met his death at the hands of a person or persons unknown, and we all prepared to leave. Barbara Fitzhugh flounced out without waiting to speak to me, but Mr. Harton came up, as I knew he would.

"You have decided to give up the house, I hope, Miss Innes," he said. "Mrs. Armstrong has wired me again."

"I am not going to give it up," I maintained, "until I understand some things that are puzzling me. The day that the murderer is discovered, I will leave."

"Then, judging by what I have heard, you will be back in the city very soon," he said. And I knew that he suspected the discredited cashier of the Traders' Bank.

Mr. Jamieson came up to me as I was about to leave the coroner's office.

"How is your patient?" he asked with his odd little smile.

"I have no patient," I replied, startled.

"I will put it in a different way, then. How is Miss Armstrong?"

"She-she is doing very well," I stammered.

"Good," cheerfully. "And our ghost? Is it laid?"

"Mr. Jamieson," I said suddenly, "I wish you would do one thing: I wish you would come to Sunnyside and spend a few days there. The ghost is not laid. I want you to spend one night at least watching the circular staircase. The murder of Arnold Armstrong was a beginning, not an end."

He looked serious.

"Perhaps I can do it," he said. "I have been doing something else, but-well, I will come out to-night."

We were very silent during the trip back to Sunnyside. I watched Gertrude closely and somewhat sadly. To me there was one glaring flaw in her story, and it seemed to stand out for every one to see. Arnold Armstrong had had no key, and yet she said she had locked the east door. He must have been admitted from within the house; over and over I repeated it to myself.

That night, as gently as I could, I told Louise the story of her stepbrother's death. She sat in her big, pillow-filled chair, and heard me through without interruption. It was clear that she was shocked beyond words: if I had hoped to learn anything from her expression, I had failed. She was as much in the dark as we were.

CHAPTER XVIII

A HOLE IN THE WALL

My taking the detective out to Sunnyside raised an unexpected storm of protest from Gertrude and Halsey. I was not prepared for it, and I scarcely knew how to account for it. To me Mr. Jamieson was far less formidable under my eyes where I knew what he was doing, than he was of in the city, twisting circ.u.mstances and motives to suit himself and learning what he wished to know, about events at Sunnyside, in some occult way. I was glad enough to have him there, when excitements began to come thick and fast.

A new element was about to enter into affairs: Monday, or Tuesday at the latest, would find Doctor Walker back in his green and white house in the village, and Louise's att.i.tude to him in the immediate future would signify Halsey's happiness or wretchedness, as it might turn out. Then, too, the return of her mother would mean, of course, that she would have to leave us, and I had become greatly attached to her.

From the day Mr. Jamieson came to Sunnyside there was a subtle change in Gertrude's manner to me. It was elusive, difficult to a.n.a.lyze, but it was there. She was no longer frank with me, although I think her affection never wavered. At the time I laid the change to the fact that I had forbidden all communication with John Bailey, and had refused to acknowledge any engagement between the two. Gertrude spent much of her time wandering through the grounds, or taking long cross-country walks. Halsey played golf at the Country Club day after day, and after Louise left, as she did the following week, Mr. Jamieson and I were much together. He played a fair game of cribbage, but he cheated at solitaire.

The night the detective arrived, Sat.u.r.day, I had a talk with him.

I told him of the experience Louise Armstrong had had the night before, on the circular staircase, and about the man who had so frightened Rosie on the drive. I saw that he thought the information was important, and to my suggestion that we put an additional lock on the east wing door he opposed a strong negative.

"I think it probable," he said, "that our visitor will be back again, and the thing to do is to leave things exactly as they are, to avoid rousing suspicion. Then I can watch for at least a part of each night and probably Mr. Innes will help us out. I would say as little to Thomas as possible. The old man knows more than he is willing to admit."

I suggested that Alex, the gardener, would probably be willing to help, and Mr. Jamieson undertook to make the arrangement. For one night, however, Mr. Jamieson preferred to watch alone. Apparently nothing occurred. The detective sat in absolute darkness on the lower step of the stairs, dozing, he said afterwards, now and then. Nothing could pa.s.s him in either direction, and the door in the morning remained as securely fastened as it had been the night before. And yet one of the most inexplicable occurrences of the whole affair took place that very night.

Liddy came to my room on Sunday morning with a face as long as the moral law. She laid out my things as usual, but I missed her customary garrulousness. I was not regaled with the new cook's extravagance as to eggs, and she even forbore to mention "that Jamieson," on whose arrival she had looked with silent disfavor.

"What's the matter, Liddy?" I asked at last. "Didn't you sleep last night?"

"No, ma'm," she said stiffly.

"Did you have two cups of coffee at your dinner?" I inquired.

"No, ma'm," indignantly.

I sat up and almost upset my hot water-I always take a cup of hot water with a pinch of salt, before I get up. It tones the stomach.

"Liddy Allen," I said, "stop combing that switch and tell me what is wrong with you."

Liddy heaved a sigh.

"Girl and woman," she said, "I've been with you twenty-five years, Miss Rachel, through good temper and bad-" the idea! and what I have taken from her in the way of sulks!-"but I guess I can't stand it any longer. My trunk's packed."

"Who packed it?" I asked, expecting from her tone to be told she had wakened to find it done by some ghostly hand.

"I did; Miss Rachel, you won't believe me when I tell you this house is haunted. Who was it fell down the clothes chute? Who was it scared Miss Louise almost into her grave?"

"I'm doing my best to find out," I said. "What in the world are you driving at?" She drew a long breath.

"There is a hole in the trunk-room wall, dug out since last night. It's big enough to put your head in, and the plaster's all over the place."

"Nonsense!" I said. "Plaster is always falling."

But Liddy clenched that.

"Just ask Alex," she said. "When he put the new cook's trunk there last night the wall was as smooth as this. This morning it's dug out, and there's plaster on the cook's trunk. Miss Rachel, you can get a dozen detectives and put one on every stair in the house, and you'll never catch anything. There's some things you can't handcuff."

Liddy was right. As soon as I could, I went up to the trunk-room, which was directly over my bedroom. The plan of the upper story of the house was like that of the second floor, in the main. One end, however, over the east wing, had been left only roughly finished, the intention having been to convert it into a ball-room at some future time. The maids' rooms, trunk-room, and various store-rooms, including a large airy linen-room, opened from a long corridor, like that on the second floor. And in the trunk-room, as Liddy had said, was a fresh break in the plaster.