"The queer thing to me," observed Mr. Raven, "is that two men should be wanting to find it at the same time."

"That looks as if there were some very good reason why it should be found, doesn't it?" remarked his niece. "Anyway, it all sounds very queer—you've brought mystery with you, Mr. Middlebrook! Can't you suggest anything, Mr. Cazalette? I'm sure you're good at solving problems."

But just then Mr. Cazalette's particular servant put a fresh dish in front of him—a curry, the peculiar aroma of which evidently aroused his epicurean instinct. Instead of responding to Miss Raven's invitation he relapsed into silence, and picked up another fork.

When dinner was over I excused myself from sitting with the two elder men over their wine—Mr. Cazalette, whom by that time I, of course, knew for a Scotchman, turned out to have an old-fashioned taste for claret—and joined Miss Raven in the hall, a great, roomy, shadowy place which was evidently popular. There was a great fire in its big hearth-place with deep and comfortable chairs set about it; in one of these I found her sitting, a book in her hand. She dropped it as I approached and pointed to a chair at her side.

"What do you think of that queer old man?" she asked in a low voice as I sat down. "Isn't there something almost—what is it?—uncanny?—about him?"

"You might call him that," I assented. "Yes—I think uncanny would fit him. A very marvellous man, though, at his age."

"Aye!" she exclaimed, under her breath. "If I could live to see it, it wouldn't surprise me if he lived to be four hundred. He's so queer. Do you know that he actually goes out early—very early—in the morning and swims in the open sea?"

"Any weather?" I suggested.

"No matter what the weather is," she replied. "He's been here three weeks now, and he has never missed that morning swim. And sometimes the mornings have been Arctic—more than I could stand, anyway, and I'm pretty well hardened."

"A decided character!" I said musingly. "And somehow, he seems to fit in with his present surroundings. From what I have seen of it, Mr. Raven was quite right in telling me that this house was a museum."