Joe sucked in a gasping breath. If there was shooting, what chance would a blind man stand? The question had a sobering effect, and the police captain’s voice shed some of its bad wire.

“You’re waiting for a car, Doctor?”

“Yes.”

“What kind of car?”

“I don’t know.”

“Can you describe whoever’ll be in it?”

“No.”

Temper flamed suddenly in the harassed man. “Look here, Doctor, if you don’t know what car it is, or what whoever’s in it looks like, you’d better leave this business for those——”

“Who can see?” Doctor Stone asked mildly. “Sometimes the blindest persons have eyes.”

A car stopped at the toll-house and, while Sid Malloy collected the toll, Captain Tucker opened the doors and inspected the inside. A clock in a village church tower struck three, and the midafternoon traffic thickened and converged upon the bridge. Cars rolled upon the bridge approach, and stopped, and rolled on again, and the sound was like the beat of some large machine.