Lewisham had never heard of post hypnotic suggestion and he stood incredulous. “You can’t see that?” he said. “What nonsense!”

“I can’t see it,” repeated Lagune.

For some seconds Lewisham could not get away from stupid repetitions of his inquiry. Then he hit upon a collateral proof. “But look here! Can you see this counterfoil?”

“Plainly,” said Lagune.

“Can you read the number?”

“Five thousand two hundred and seventy-nine.”

“Well, and this?”

“Five thousand two hundred and eighty-one.”

“Well—where’s five thousand two hundred and eighty?”

Lagune began to look uncomfortable. “Surely,” he said, “he has not—Will you read it out—the cheque, the counterfoil I mean, that I am unable to see?”