“It’s a dramatic school,” Frid explained. “The young men are very intelligent. All of them say I’m going to be a good actress.”

“We’ll be passing the law courts in a minute,” said Henry.

Scarlet omnibuses sailed past like ships. Inside them were pale people who looked at once alert, tired and preoccupied. In a traffic jam a dark blue car came so close alongside that the men in the back seat were only a few inches away from Roberta and the Lampreys.

“That’s one of the new police cars, Frid,” said Henry.

“How do you know?”

“Well, I know it is. I expect those enormous men are Big Fours.”

“I wish they’d move on,” said Frid. “I wouldn’t be surprised if we fell into their hands one of these days.”

“Why?” asked Roberta.

“Well, the twins were saying at breakfast yesterday that they thought the only thing to be done was for them to turn crooks and be another lot of Mayfair boys.”

“It was rather a good idea, really,” said Henry. “You see Colin said he’d steal incredibly rich dowager’s jewels and Stephen would establish his alibi at the Ritz or somewhere. Nobody can tell them apart, you know.”