"I wish you wouldn't, really, Fatty," said Bets, looking up at him with scared eyes. "I shall hate to think of you standing so near the gang—whatever would they do to you if they discovered you? "

"They won't," said Fatty. "I shan't give myself away, you may be sure of that. I've already been practising standing still for ages, in my bedroom, in exactly that position. Buster simply can't understand it. He does all he can to make me move!"

The others laughed. They could quite well picture Fatty standing solemnly in his room, perfectly still, with a most astonished Buster trying in vain to get a movement or a sound out of him!

"Come on—let's go now," said Fatty. "It's most frightfully hot in here. Hallo—there's Goon—and in uniform again! He looks better in uniform than in plain clothes, I must say. Not that he's much to look at in either!"

Mr. Goon was standing just outside the Waxworks Hall, apparently about to go in. He scowled when he saw the children. Funny how those kids always seemed to turn up everywhere!

"What are you doing here?" he asked, in a suspicious voice.

"Passing the time away, Mr. Goon, just passing the time," said Fatty airily. "What are you doing here? Is your holiday over? You must miss your little trips to the sweet-shop."

Buster was on the lead, or he would certainly have darted at his enemy. But Fatty, seeing the black look on Mr. Goon's face, hastily dragged him away.

"Wonder what he's done with that grocery list!" said Daisy, with a giggle. "Put it with his Clues, I expect. Well, we know more about that than he does!"

Bets wanted to go down by the river, so the others went, too, meaning to walk home by the river-path. Bets stared hard at every one in boats, and Pip noticed her.