“This police captain of yours,” he observed at last, “Battle, or whatever his name is, is he the goods all right?”

“Scotland Yard thinks so,” replied Anthony dryly.

“He seems kind of hide-bound to me,” remarked Mr. Fish. “No hustle to him. This big idea of his, letting no one leave the house, what is there to it?”

He darted a very sharp look at Anthony as he spoke.

“Everyone’s got to attend the inquest to-morrow morning, you see.”

“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: