“Were you alone?” came The Shadow’s whispered question.
Harry nodded weakly. The Shadow let the door drop and pulled the switch to complete the descent of the platform.
While the mechanism thrummed, he looked at Bron. The giant eyes were glassy. The Shadow’s mighty blow had killed him.
The man in the black cloak turned silently to the door at the side of the corridor. Here, again, his fingers sought the secret switch. The door arose. A lighted room lay beyond.
A man was sitting in a chair, his head buried against his arm. The Shadow approached and tapped him.
The man looked up hopelessly toward the figure in black. It was Wilbur Blake, haggard and unshaven!
With Blake’s aid, The Shadow carried Vincent up the spiral stairway. He released the man in the closet and made him conduct the party from the building. They made their exit near the air shaft through which they had passed on their journey.
Headquarters received another mysterious phone call that night. It resulted in the dispatch of a patrol to Tenth Avenue.
The police found a man bound and gagged in an air shaft beside a warehouse. They also discovered another man in a pit beneath an ingenious trapdoor.
They investigated a labyrinth of passages beneath the warehouse. Making a round-up of the neighborhood, they captured one suspicious character, and uncovered a room in the house across the way from the side entrance of the building.