"I say, Mr. Goon!" called Pip, as the policeman prepared to mount his bicycle. "Do you know where our friend, Frederick, is?"

"Why should I?" scowled Mr. Goon, but his heart sank. So that boy had vanished!

"Well, we just wondered," said Pip. "I suppose you haven't seen him at all? "

Mr. Goon couldn't say that. He mounted his bicycle and rode off, his face red. He hoped that boy Fatty wasn't going to cause a lot of trouble, just as he, Goon, had got things going so very nicely.

He passed Daisy and Bets. Daisy called out. "Oh, Mr. Goon! Have you seen Fatty? Do tell us if you have!"

"I don't know where he is," said Mr. Goon desperately, and cycled on. But at the corner, there was Larry!

"Mr. Goon! Mr. Goon! Have you seen Fatty? Do you know where he is? Do you think he's disappeared? Mr. Goon, do tell us where he is. Have you locked him up?"

"Course not!" spluttered Mr. Goon. "He'll turn up. He'll turn up like a bad penny, you may be sure!"

He rode on, feeling most uncomfortable. Where could the boy be? Had that thief who escaped gone back to the Hall, and taken Fatty? No, that couldn't be, surely. But WHERE WAS that boy?

The Inspector was waiting for Mr. Goon in his office. On his desk were various reports of the happenings of the night before, sent in, not only by Mr. Goon, but by two other policemen who had helped in the arrests, and by plain-clothes detectives who had also been on the case.