"No, Adam."
"Look here. See this big letter, repeated at the first of this word?"
"Yes."
He flipped a few "pages" past. "It's the same with all of them, you see? And the middle word is always the same—four curly letters. You know what that middle word is?"
"No, Adam."
"It's 'stands for' or 'means.'" He stared at her. "Get it?"
She thought an instant. "Of course. Adam, that's very clever of you." She wasn't scared yet. She hadn't seen the implication.
"'Stands for'?" Calvin repeated.
"A stands for Apple," explained Mrs. Full. "Or A stands for Airship, or whatever it might be. It's an alphabet book, dear."
She still hadn't caught it. "Remember when Mr. Full built the cubbyhole here," Adam said, "and the giant knocked it down? Why was he angry?"