The Shadow realized that it would have to go out the window.
The Shadow realized the reason for the silence from the upper floor.
The Shadow had realized that some desperate device was coming into play.
The Shadow realized he had been placed in a grim situation.
Shadow realized he was holding his breath, waiting for something.
His hand, The Shadow realized, had come early into the game.
The Shadow realized that such talk had been a hoax.
The Shadow knew the answer, and realized why chance had brought him here too late to prevent these deaths.
The Shadow realized that he had been forced into an elevator.
And then Shadow realized that the lights were going out.