decision at breakfast to tell you all about his brother. It
wasn't instantaneous. He knew on Monday that Robert was coming,
and decided then that you would all have to know."

"Then how do you explain the letter?"

"Well, let's have a look at it."

Antony took the letter from his pocket and spread it out on the
grass between them.

"Mark, your loving brother is coming to see you to-morrow, all
the way from Australia. I give you warning, so that you will be
able to conceal your surprise but not I hope your pleasure.
Expect him at three or thereabouts."

"No date mentioned, you see," said Antony. "Just to-morrow."

"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.