This plan commended itself to Jack, and Charley submitted. Poor fellow, he was too weary to take any active interest even in plans for defence. The brushwood was brought and carefully placed in position. It was not sufficient to make a wall all the way around, but only a small gap was left near the water.

"Shall we cut more brush to-night, Jack?" asked Ned.

"No, I think we needn't. When we go to setting poles to-morrow, the brush we remove will do to close the gap with, and for one night we can watch so small an opening. We need rest and sleep now more than any thing else. You and Charley lie down. I'm the freshest one of the party, I think, and so I'll stand guard for a good while before calling either of you."

"Stand guard?" asked Ned; "what for?"

"Why, it won't do at all for all three to sleep at once. We might be attacked while asleep. If there were no danger of that we needn't have thought of a stockade at all."

Sleepy and tired as Ned and Charley were, they recognized the necessity for this watchfulness. It was very hard for the three weary fellows to take their turns at standing guard that night, but they did their duty. Jack took a long turn first, and Ned followed him, so that Charley got a good sleep of several hours, and was much refreshed before his period of watching began.


CHAPTER XVII.

A NEW DANGER.

The night brought its alarms with it. Every noise in the woods round about startled the alert sentinel, and there always are noises at night, not only in the woods but in houses also, as we all find out, when for any reason we are awake and on the alert. It seemed to each of the boys during this night, that there never were so many sounds which could not be explained: crackling noises, like those which are produced by the breaking of dry sticks under foot; sounds of footsteps, and of hard breathing; a thousand different sounds, in short, each of which seemed for the time being surely to indicate the stealthy approach of some foe.