“Have you noticed the other rooms⁠—the billiard-room, and library, and so on?” said Cayley.

“I’ve only just thought about it while I’ve been sitting out here. You live here⁠—haven’t you ever noticed them?”

Cayley sat considering, with his head on one side.

“It seems rather absurd, you know, but I can’t say that I have.” He turned to Bill. “Have you?”

“Good Lord, no. I should never worry about a thing like that.”

“I’m sure you wouldn’t,” laughed Antony. “Well, we can have a look when we go in. If the other keys are outside, then this one was probably outside too, and in that case⁠—well, it makes it more interesting.”

Cayley said nothing. Bill chewed a piece of grass, and then said, “Does it make much difference?”