The policeman, momentarily dazed, saw his flashlight shining on the ground. He leaped for it, and flashed it back and forth. It located his revolver. He hurried toward the street — with many seconds lost. The patrolman looked up and down. Forty feet away, he saw a man halfway in the door of a parked automobile. The policeman raised his revolver and ran shouting in that direction. The man emerged from the car and stood awaiting him. The policeman stopped short.

He was facing a tall man, immaculately clad in evening clothes. The man blocked the door of the car; the officer's flashlight, shining beyond, showed thick darkness within the vehicle.

"What is the trouble, officer?"

The gentleman spoke in a quiet voice. The policeman was immediately impressed by his importance. The contrast between the swift activity of the shrouded figure in the alley, and the quiet bearing of this individual, was obvious.

Not for one moment did the officer suspect any connection between them, but he figured that this man might serve as a witness.

"A man got away from me back there," declared the policeman, waving his gun toward the entrance of the alley. "Did you see him? Which way did he go?"

"I saw no one," was the quiet response.

The policeman stared down the street toward the corner. He decided that his attacker must have dashed in the opposite direction. Pursuit, now, would be useless.

The officer felt that his duty was up in the apartment building, not knowing that others of the police had already entered by the front door.

"All right," he said gruffly. "Sorry to have bothered you, chief. If you're driving away, and see any one that looks suspicious, better get to the nearest policeman."