“That’s the idea, is it? No more to it than that? No question of Lord Caterham’s guests being suspected?”

“My dear Mr. Fish!”

“I was getting a mite uneasy⁠—being a stranger in this country. But of course it was an outside job⁠—I remember now. Window found unfastened, wasn’t it?”

“It was,” said Anthony, looking straight in front of him.

Mr. Fish sighed. After a minute or two he said in a plaintive tone:

“Young man, do you know how they get the water out of a mine?”

“How?”