"Yes. We all know it wasn't. And yet there in the cage is a whistle that only Luke could have dropped," said Fatty. "This is a very extraordinary mystery, I must say."
"Fatty, if Mr. Goon sees that whistle, will he say it's a proper proof that Luke was the thief?" asked Bets anxiously.
Fatty nodded. "Of course. It's a most enormous, unmistakable clue, Bets — to someone like Clear-Orf, who can't see farther than his nose."
"But it isn't a clue like that to you, is it, Fatty?" went on Bets, clutching his hand. "Oh, Fatty! you don't think Luke dropped it, do you?"
"I'll tell you what I think," said Fatty. "I think that somebody put it there so that Luke might be suspected. That's what I think."
"Golly! I think you're right!" said Larry. "This is getting very mysterious. I say, do you think we ought to leave this clue for Clear-Orf to see? After all, we're pretty certain it's a false clue, aren't we?"
"You're right," said Pip. "I vote we get the clue out, and take it away!"
The five children stared at the whistle lying on the floor. The cage was locked. The key was gone. How could they get the whistle out?
"We'll have to be quick," said Fatty desperately. "Clear-Orf may be back in a short while. For goodness' sake! how can we get that whistle out of the cage?"
Nobody knew. If the whistle had been a little nearer the wire-netting, the children might have got some wire or a stick and worked it near enough to take out. But it was at the back of the cage.