“No, nothing unusual beyond the fact that Mrs. Vanderstein seemed to be enjoying uncommonly good spirits. I also thought, but it might be it was only my fancy, that you couldn’t say the same of Miss Turner. Yesterday she appeared to be very much down on her luck.”

“Did the idea of an accident occur to you?” asked Gimblet. “Have you inquired at any of the hospitals?” “I telephoned to St. George’s, sir, but with no result. I didn’t know where else to make inquiries.”

“I understand,” said the detective presently, “that Mrs. Vanderstein has relatives and friends living in London. Did you communicate with any of them this morning?”

“No, sir, I did not. I had already telephoned to Sir Gregory last night and heard he was out of town.”

“Is there no one else to whom you could have appealed for advice? I understand that Mrs. Vanderstein has a nephew or nephew by marriage. Does he live in London?”

“No, sir, his regiment is quartered in the north of England. But it is true,” Blake stammered, with some appearance of reluctance, “that Mr. Sidney is off and on in London, according as he is able to obtain leave, and I believe he is up at the present moment.”

“I should have thought you would have telephoned to him to-day. Did it not occur to you to do so?”

Blake hesitated again. He looked from Gimblet to Sir Gregory, then let his eyes roam to the window and round the room as if help might be hoped for from some unlikely source. Finally, they once more encountered those of the detective and, under that compelling gaze, he spoke.

“I did think of it,” he faltered, “I should have done so if it had not been for one thing. Mr. Sidney came to the house yesterday afternoon and, I don’t like to mention it, sir, but I am afraid that he had words with his aunt. I have no idea what it was about, sir, but he only stayed a few minutes and as soon as he was gone Mrs. Vanderstein called me and gave me strict orders not to allow him to enter the house in future. She seemed very much put out about something and I am sure she wouldn’t like me to have any communications with Mr. Sidney now. It isn’t my place to allude to such a thing at all, but in the peculiar circumstances, sirs, I hope you will excuse my saying that Mrs. Vanderstein appeared to me to be very much put out indeed.”