"Of course," grinned Bill.
"But I think that perhaps it is a little early to put our theories before them."
"I think perhaps it is," said Bill solemnly.
Antony looked up at him with a sudden smile.
"Bill, you old bounder."
"Well, dash it, it's our show. I don't see why we shouldn't get our little bit of fun out of it."
"Neither do I. All right, then, we'll do without the police to-night."
"We shall miss them," said Bill sadly, "but 'tis better so."
There were two problems in front of them: first, the problem of getting out of the house without being discovered by Cayley, and secondly, the problem of recovering whatever it was which Cayley dropped into the pond that night.
"Let's look at it from Cayley's point of view," said Antony. "He may not know that we're on his track, but he can't help being suspicious of us. He's bound to be suspicious of everybody in the house, and more particularly of us, because we're presumably more intelligent than the others."
He stopped for a moment to light his pipe, and Bill took the opportunity of looking more intelligent than Mrs. Stevens.
"Now, he has got something to hide to-night, and he's going to take good care that we aren't watching him. Well, what will he do?"
"See that we are asleep first, before he starts out."
