Noll threw one hand behind him, waving it.

"Don't go more than ten or twenty yards beyond our lines, men," warned Captain Freeman, looking up from the hard tack at which he had been munching.

Hal wheeled about, saluting respectfully, but did not trust himself to speak.

Then the chums continued their slow stroll.

Three minutes later they were just beyond the edge of the camp, halting beside a bush.

"Here's our chance," whispered Hal, glancing just past the roots of the bush.

A little gully started there. Twenty feet further on it was more than six feet deep.

Hal passed around the bush, dropping into the gully. In another moment Noll had leisurely joined him.

Now, they traveled faster over the bed of the gully, though they were careful to go cat-footed, for they had yet to pass sentries, very likely outposts, and there was a grave risk of their running into some scouting detachment from C Company.