He showed it to Larry and Daisy. They read it in great excitement.

“I say! He’s certainly found out something!” said Larry. “He must have got in at the coal-hole and gone up to that secret room. I vote we all go down to Milton House now, this very minute.”

“Bets was awfully silly all last night and this morning,” said Pip. “She kept on worrying and worrying because she felt sure Fatty was in trouble! She cried like anything when we found he wasn’t at home. She’s an awful baby.”

“I’m not,” said Bets, going red. “I did feel awfully worried, but I couldn’t help it. Something sort of told me that Fatty was in danger - and, as a matter of fact, I still don’t feel quite right about him. I mean - I’ve still got that uncomfortable sort of feeling.”

“Have you?” said Daisy. “How funny! But nothing can be wrong with Fatty now! You’ve read his note.”

“I know,” said Bets, and she read it again. “I wonder why he signed himself ‘Freddie,’ ” she said suddenly. “He nearly always puts ‘Fatty’ now. I suppose he just didn’t think.”

The little girl looked thoughtfully at the letter. Then she sniffed a little, turning this way and that.

“What’s the matter? You look like Buster when he smells a nice smell and doesn’t quite know where it comes from!” said Larry.

“Well - I did get a whiff of a smell that reminded me of something,” said Bets. “What was it now? Yes - I know - oranges! But there aren’t any in the room.”

“Imagination,” said Pip. “You’re always imagining things.” He took the letter and began to fold it up, but as he did so, he too began to sniff.