"Well, Tom, old scout," said Bert, "it's no go for to-day. We've got to go into camp."
"Yes," agreed Tom, bitterly, "we've done our best, but our best isn't good enough. Poor Dick——"
"Brace up, old fellow," replied Bert, feigning a cheerfulness he did not feel, "we'll get there yet. To-morrow's a new day. And remember that this same darkness is holding up the guerillas too. They've got to go into camp and they're not getting any further ahead of us. Likely enough they'll feel pretty secure now and they won't be stirring so early to-morrow, while we'll be afoot at the first streak of daylight. What we've got to do now is to figure out the best and safest way to spend the night."
Near the spot where they were when darkness had overtaken them, was a grassy knoll, at the edge of which uprose a giant rock. At the foot of this they drew together enough of branches and shrubs to make a rude bed, and prepared to settle down and spend as best they could the hours before the coming of the dawn. They did not dare to make a fire, lest some prying eyes might discover their location. They had nothing to cook anyway, but the fire would have served to keep up their spirits and the smoke would have kept off the mosquitoes that hovered over them in swarms. It would have helped also to drive the chill from their bones, brought on by the heavy mists that rose from the lush vegetation and set their teeth to chattering. They drew close together for the companionship, and munched their bread and meat in silence. They were feeling the reaction that follows sustained effort and great excitement, and their hearts were too sick and sore for speech.
Then suddenly while they brooded—as suddenly as the sun had set—the moon arose and flooded the world with glory.
It put new life into the boys. They took heart of hope. Their mental barometer began to climb.
"I say, Bert," exclaimed Tom, eagerly voicing the thought that struck them both at once, "couldn't we follow the trail by moonlight?"
"I don't know," answered Bert, quite as excitedly. "Perhaps we can.
Let's make a try at it."
They started to their feet and hurried to the spot where they had left the trail. Bathed in that soft luminous splendor, it certainly seemed as though they should have no difficulty in following it as easily as by day. But they soon found their mistake. It was an unreal light, a fairy light that fled from details and concealed rather than revealed them. It lay on the ground like a shimmering, silken mesh, but through its tremulous beauty they could not detect the signs they sought. They needed the merciless, penetrating light of day. Their hopes were dashed, but they had to yield to the inevitable. They were turning back dejectedly to their improvised camp, when Bert stopped short in his tracks.
"What was that?" he whispered, as he grasped Tom's arm.