Meanwhile, not knowing that Mr. Goon was thinking all these tiresome things, the children were on their way to Milton House, keeping a sharp look-out in case Mr. Goon was still following them.

“I don’t think he is,” said Fatty. “He’s probably on his way to Felling Hill by now!”

They came to Milton House - and almost at once Fatty gave a low exclamation.

“Look there!’ What do you think of that? Footprints to the front door!”

The children stared at them. They saw a line of prints, very big prints too, leading down the drive, right to the front door. And they saw another line, criss-crossing the others, leading back!

“Some one’s been here,” said Fatty, excited.

“Yes - I bet you did put John Henry Smith on his guard, and he came down here in the night!” said Larry.

“How did he come?” said Pip.

“By car, I bet!” said Daisy. “I saw some car-prints outside, but I didn’t take much notice of them. Come and see.”

They all went to see - and sure enough, a car had been down Chestnut Lane the night before, and had stopped outside Milton House! And it had turned round there too and gone back up the lane again, for there were the same wheel-prints on opposite sides of the road.