His eyes closed....
When he opened them again it was dark.
"First time I've slept like that for years," he said, sitting up and stretching.

Around him the grass was wet with dew.

"Must be getting late," he thought.

"I'd better get under shelter." On the bridge above the dam he saw the headlights of a car slowly moving.
In the centre it stopped and the lights went out.
"That's funny," he thought.

"Something the matter with his wires, maybe." He stood up, idly watching.