“But he got this on Tuesday.”

“Did he?”

“Well, he read it out to us on Tuesday.”

“Oh, yes! he read it out to you.”

Bill read the letter again, and then turned it over and looked at the back of it. The back of it had nothing to say to him.

“What about the postmark?” he asked.

“We haven’t got the envelope, unfortunately.”

“And you think that he got this letter on Monday.”

“I’m inclined to think so, Bill. Anyhow, I think⁠—I feel almost certain⁠—that he knew on Monday that his brother was coming.”

“Is that going to help us much?”