"You may open your wings as wide as you please, once we are in New York."

"But if he goes on this way?"

"I have still some traps. There will be a little journey in Chicago between one station and the other. Who knows what may happen?"

"But why coop me up?"

"The hour may come when I shall need you. If he saw you it would not be possible. Did Hallowell have a photograph of you?"

"In his watch-case. But he destroyed it the night he left me." She frowned.

"Nevertheless, he must never see you. On board the ship it was your impatience that caused me to fail. We merely put him on his guard. The blue-prints were in the purser's safe, and his signature was not in the receipt-book. Have patience. No man is perfect. Patience often overcomes skill. Sooner or later the skilful man grows careless, or he forgets, or he comes to believe he is a godson of luck. And then, there is the lack of sleep. Somewhere along the route I'll find a weak spot."

"I hate all Yankees!"

"So do I, Berta. I hate them because some of them are not boasters. Have patience. A small city east of Chicago, a chief of police who likes newspaper notoriety. A couple of hours; we sha'n't need any more than that. New York!" jovially.