Antony looked up at him in surprise.
"Didn't you hear what he said?"
"What, particularly?"
"That it was Cayley's idea to drag the pond."
"Oh! Oh, I say!" Bill was rather excited again. "You mean that he's hidden something there? Some false clue which he wants the police to find?"
"I hope so," said Antony earnestly, "but I'm afraid-" He stopped short.
"Afraid of what?"
"Afraid that he hasn't hidden anything there. Afraid that-"
"Well?"
"What's the safest place in which to hide anything very important?"