Crawford was the man who had trapped him. Harry had no opportunity to fight or to make an outcry. He sensed that he was in great danger; yet he was helpless. His captor had been too swift and thorough in his work.

Crawford, his mind had told him, was the one man to avoid. Yet Harry had failed to rely upon his better judgment.

Harry made one last effort to struggle. The bearded man tightened his grip, and Harry winced with pain. Then Crawford leaned forward, and spoke in a low, whispering voice.

CHAPTER XXII

THE SECRET OF THE TOWER

“LIE still,” hissed the bearded man. “Make no effort to move, or — “

The threat was implied. Harry lay motionless.

“Listen,” continued Crawford. “Listen carefully, and obey. Do as I tell you, or it will mean your death. Do you understand?”

Harry tried to nod, notwithstanding the fact that one of the bearded man’s hands was pressed over his face.

“Go back to your room,” came the whispered command. “Go so quietly that none can hear. Leave the door ajar. Wait there until I come.”