With hands upraised, the three men backed away from the gun, forced to the door of the little bedroom. They did not know who this mysterious intruder menacing them could be. Only the hand of The Shadow was visible in that light.
The three were forced into the little room. The light clicked out; the door was drawn shut by an unseen hand. The key turned in the lock.
A soft laugh rippled through the study, where The Shadow was alone.
On came the lights of the room. Beside the door, The Shadow stood and watched the metal box that lay upon the floor beside the wall.
Deliberately, he opened the door to the outer room and stood there, waiting. There was no noise from the bedroom.
Weston and his companions were not yet bold enough to give the alarm.
The Shadow was expecting something. The innocent-looking object on the floor boded no evil; yet toward it, his gaze was focused.
But for his arrival and subsequent action, three other men would be watching here now — watching idly while they waited the return of Biscayne and Cardona.
The box clicked. Its top sprang apart. From its interior emerged a greenish shape that spread in all directions.
Swirling, sweeping, a vast cloud of deadly gas spread through the room!