“Look here,” he said. “Who is this Miss Waters?”

“How should I know?” prevaricated Melville.

“Well, you do know. And the others know. Who is she?”

Melville met his eyes. “Won’t they tell you?” he asked.

“That’s just it,” said Chatteris.

“Why do you want to know?”

“Why shouldn’t I know?”

“There’s a sort of promise to keep it dark.”

“Keep what dark?”

My cousin gestured.