“No, they never charge for that,” continued the girl. “That’s a heap of money saved, and then we can use what we save on the address for the rest.”

Wilfred stared at her as if this problem in economics was not quite clear to his youthful brain, but she gave him no time to question her ingenious calculations.

“What comes after the address?” she asked in her most businesslike manner.

“‘Sir.’”

“Leave that out.”

Wilfred swept his pen through it.

“He knows it already,” said Caroline. “What’s next?”

“‘This is to notify you that I want you to let me come right now.’”

“We could leave out that last ‘to,’” said Caroline.

Wilfred checked it off, and then read, “‘I want you—let me come right now.’ That doesn’t sound right, and anyway it is such a little word.”