I'll have the guards post a double watch tonight and tomorrow.

"Each of you will have to take double watches now, to make up for Sanja's death."

And he reported it and the put on a double watch that night.

"They do double watch and nobody sleep," he said.

"I suppose it was necessary for you to stand a double watch?"

We'll post double watch - one by the door, one down the corridor.

This means the chief will need us to do double watch.

It was dark now and, after ordering a double watch on all sectors of the wall, he invited the men with him to share dinner.

They set double watch at night, though no one could say exactly why, only that they felt a growing sense of threat and menace.

"How about standing a double watch with me tonight?"