"Just so! And your daughter, as I have gathered, was clearly absent from the spot each time—indeed, was in company with the party robbed. Your niece, now?"

"Why hang it all, Mr. Hewitt, I can't talk of my niece as a suspected criminal! The poor girl's under my protection, and I really can't allow——"

Hewitt raised his hand, and shook his head deprecatingly.

"My dear sir, haven't I said that I don't suspect a soul? Do let me know how the people were distributed, as nearly as possible. Let me see. It was your, niece, I think, who found that Mrs. Armitage's door was locked—this door, in fact—on the day she lost her brooch?"

"Yes, it was."

"Just so—at the time when Mrs. Armitage herself had forgotten whether she locked it or not. And yesterday—was she out then?"

"No, I think not. Indeed, she goes out very little—her health is usually bad. She was indoors, too, at the time of the Heath robbery, since you ask. But come, now, I don't like this. It's ridiculous to suppose that she knows anything of it."

"I don't suppose it, as I have said. I am only asking for information. That is all your resident family, I take it, and you know nothing of anybody else's movements—except, perhaps, Mr. Lloyd's?"

"Lloyd? Well, you know yourself that he was out with the ladies when the first robbery took place. As to the others, I don't remember. Yesterday he was probably in his room, writing. I think that acquits him, eh?" Sir James looked quizzically into the broad face of the affable detective, who smiled and replied:

"Oh, of course nobody can be in two places at once, else what would become of the alibi as an institution? But, as I have said, I am only setting my facts in order. Now, you see, we get down to the servants—unless some stranger is the party wanted. Shall we go outside now?"