The lights in house windows gleamed through drawn shades, except in one house, where he could see quite distinctly a woman seated beside a lamp with a green shade, sewing, with regular motions of a red, silk-clad arm.

Von Rosen strained his eyes, and saw, as he thought, a dark bulk advancing far down the street.

He watched and watched, then noted that the dark bulk had not moved.

He wondered if the motor had broken down.

He thought of running out to see, and made a motion to go, then he saw swiftly-moving lights pass the dark bulk.