The reason for his action was the one point that The Shadow had not guessed.
The Shadow alone had guessed the meaning of these sounds.
Whatever The Shadow might have guessed, there was one thing that he had not learned.
There was far more behind this than The Shadow could yet guess.
The Shadow could guess why the door remained closed.
The Shadow could guess the next move that would be made.
The Shadow guessed it before he set down the rest of the grim radio flash.
The Shadow, coming up to the side of the limousine, had quickly guessed the facts.
The Shadow could guess the name of the exchange.
The Shadow also guessed the spot from which the shot had come.