"Why ever are you glaring at every one who's in a boat? "he asked.

"I'm not glaring," said Bets. "I'm just looking to see if I can spot anyone with odd eyes, that's all. I did see the odd-eyed man in a boat, you know, when that punt knocked against me—and I might quite well see him again."

"What would you do if you did?" demanded Pip. "Jump in and arrest him? "

"It's quite a good idea of Bets," said Fatty, always quick to defend the little girl. "After all, if the man was here, he might be again. And if we saw him on the river we could get the name of the boat, and, if it was privately owned, we could find out the name of the owner."

"The only thing is—people go by so quickly that it's difficult to see if their eyes are odd or not," said Bets.

"I say, Fatty, how are you going to get your face all pink like Napoleon's?" asked Larry looking at Fatty's very brown face.

"Easy," said Fatty. "I shall put a little layer of pink wax all over my face and let it set. I know how to do it. It's in a book I've got."

Fatty had the most extraordinary collection of books. He seemed to be able to find out from them anything he wanted.

"You'll have to do that before you set out, won't you?" said Daisy. Fatty nodded.

"Yes. Larry will have to go with me if the night isn't dark enough to hide me, and warn me if any one is coming who might be likely to spot me. But now that there's no moon, I ought not to be noticed much in the twilight."