Maurer swallowed this insult as he felt it was justified.

“But how do you know?”

“I’ve been up to the tenth floor. I’ve listened end I’ve watched. I’ve even seen her.”

Maurer gaped at him.

“You’ve been up there! How did you get there?”

“That’s my secret,” Ferrari returned.

There was a long pause, then Maurer said, “Well, okay, then tell me how she’s to the accidentally.”

Ferrari crossed one short leg over the other. He yawned, stretched, then folded his hands in his lap.

“It’s an interesting problem, not impossible, but difficult. I believe I am the only man in the world who can do it.”

“You really can do it?”