Outside, a thick winter fog has descended, and their journey through the streets is a sinister expedition.

Danger clung to him like winter fog and, despite himself, Charrow swallowed.

He broods that normal winter fog and bad air could produce an inversion.

"So one moment it was there and the next it vanished like winter fog?"

What a contribution they made to winter fogs, thought Joe.

It receives virtually no rain but has considerable winter fog.

The aircraft fly through ground fire and thick winter fog, carrying up to 250 tons of supplies a day.

The group of hunters managed to move through the crowds and cold winter fog without incident.

"Why, I think were going to have a winter fog."

An air of violence seemed to have gathered about them like winter fog.