“Promise me, Chester.�

“I promise.�

“And you’ll meet those people at London Bridge Station tonight?�

“MacKeenon?�

“Yes.�

“I’ll keep the meet.�

“You have your cap and the diagram and the greyhound—the little silver insignia that keeps a man from harm?â€�

“I have them, Saidee!�

“Then go, quickly!â€� she said, leaning down. “Go and get the cipher-key. It means so much to you—and the world!â€�

“Adieu!� he breathed as he thrust his legs through