"A good plan, Sergeant; but take mighty good care of yourself!"

"Yes, sir. If you hear sounds of trouble up ahead then I suppose you'll push right on through."

"If there's any sound of trouble, whatever, Sergeant, you can depend upon our rushing through."

Saluting, Overton turned and slowly vanished into the darkness ahead. Just as he came out of the gully Hal heard a cautious, warning:

"Sh-sh!"

The muzzle of a rifle was thrust to his breast.

"Noll?" whispered Hal.

"Yes," whispered Terry.

"Where's the real sentry at this point?" breathed Hal.

"The poor fellow was chilled through. I got chummy with him, talking sign language, and then volunteered to stand duty for him. The Moro has gone off to take a sleep where it's drier."