"I don't know," he said, when Kennedy pressed for an explanation of the reappearance of the cup. "It's no good asking me. I'm going now to borrow the matron's smelling-salts: I feel faint. After that I shall wrap a wet towel round my head, and begin to think it out. Meanwhile, you're to go over to the Head. He's had enough of me, and he wants to have a look at you."
"Me?" said Kennedy. "Why?"
"Now, is it any good asking me??" said Fenn. "If you can find out what it's all about, I'll thank you if you'll come and tell me."
Ten minutes later Kennedy returned. He carried a watch and chain.
"I couldn't think what had happened to my watch," he said. "I missed it on the day after that burglary here, but I never thought of thinking it had been collared by a professional. I thought I must have lost it somewhere."
"Well, have you grasped what's been happening?"
"I've grasped my ticker, which is good enough for me. Half a second. The old man wants to see the rest of the prefects. He's going to work through the house in batches, instead of man by man. I'll just go round the studies and rout them out, and then I'll come back and explain. It's perfectly simple."
"Glad you think so," said Fenn.
Kennedy went and returned.
"Now," he said, subsiding into a deck-chair, "what is it you don't understand?"