"What is the question?"
"Why have you placarded London from end to end with those posters?"
[CHAPTER XVI]
WHAT MILDRED KNEW
Eustace looked at her much surprised. "If you don't know of those things, I don't," he said.
"Do you mean to say you didn't get them out?"
"Certainly. I saw one, and was very much surprised."
"Do you know what the Scarlet Bat means?" she asked.
"Perhaps I do," he said, enigmatically.
"And the name Tamaroo?"