“There is some one locked in the laundry,” I replied. “Mr. Jamieson wants you to help him break the lock. Warner, whose bag is this?”

He was in the doorway by this time, and he pretended not to hear.

“Warner,” I called, “come back here. Whose bag is this?”

He stopped then, but he did not turn around.

“It’s—it belongs to Thomas,” he said, and fled up the drive.

To Thomas! A London bag with mirrors and cosmetic jars of which Thomas could not even have guessed the use! However, I put the bag in the back of my mind, which was fast becoming stored with anomalous and apparently irreconcilable facts, and followed Warner to the house.

Liddy had come back to the kitchen: the door to the basement stairs was double-barred, and had a table pushed against it; and beside her on the table was most of the kitchen paraphernalia.

“Did you see if there was any one missing in the house?” I asked, ignoring the array of sauce-pans rolling-pins, and the poker of the range.

“Rosie is missing,” Liddy said with unction. She had objected to Rosie, the parlor maid, from the start. “Mrs. Watson went into her room, and found she had gone without her hat. People that trust themselves a dozen miles from the city, in strange houses, with servants they don’t know, needn’t be surprised if they wake up some morning and find their throats cut.”

After which carefully veiled sarcasm Liddy relapsed into gloom. Warner came in then with a handful of small tools, and Mr. Jamieson went with him to the basement. Oddly enough, I was not alarmed. With all my heart I wished for Halsey, but I was not frightened. At the door he was to force, Warner put down his tools and looked at it. Then he turned the handle. Without the slightest difficulty the door opened, revealing the blackness of the drying-room beyond!