Hal whistled softly--the whistle of the old days in America--and, listening, heard Chester whistle softly in return. Believing now that everything was safe, Hal left his fallen enemy behind, and started toward the spot where Chester was rising to his feet. Hardly had he traversed half the distance, when there was another shot, and Hal saw Chester, who was advancing to meet him, topple to the ground. Hal turned in the direction of the flash of the rifle, and, scarcely taking time to aim with his newly-acquired automatic, fired. His effort was rewarded with a howl of pain, but, as the lad started to run to where his fallen friend lay, there was another shot, and Hal felt a bullet whiz by his head. Quickly he dropped to the ground, thinking that his unseen antagonist would believe him dead. He held his revolver ready, prepared to fire at the first sight of his enemy. But the latter was not to be caught thus easily. Evidently he had heard of such subterfuges before. Hal waited patiently for some moments, and then, as there was no sign of his unseen enemy, he crawled slowly toward the spot where Chester had fallen. What was his surprise to find that Chester was not there. For a moment Hal was stupefied, but his amazement was brought to an end by a low whistle, and, looking to the right, Hal beheld his friend behind a large tree. A moment later Hal was beside his friend. "Are you hurt much?" he demanded anxiously. "Not even touched," was the reply. "I dropped to the ground when the bullet whizzed by. I was afraid he would hit me next time." Hal seized Chester's hand and squeezed it warmly. "I was afraid it was all up with you," he said. "I----" The sudden flash of a rifle interrupted him, and another bullet flew past. CHAPTER XIV. THE DEATH OF A TRAITOR. "Great Scott!" Hal ejaculated. "We've got to get out of here some way. We can't stand here and be shot down." "Wait," said Chester, as Hal started to move away, and pulled the latter to the ground, where he had dropped himself. "What is it?" demanded Hal. "Let me look at that gun you have a moment." Without a word Hal passed it over. Chester examined it as carefully as possible in the dark. "I don't believe there is more than one man in these woods," he finally said. "Now, you stay here, and I shall try and work round behind him." Without waiting for a reply Chester started crawling away, not directly toward the spot where the last flash of fire had come from, but bearing off well toward the right. Hal started to protest, but, before he could utter half a dozen words, Chester had disappeared in the darkness. Hal lay in silence for some time. Finally, putting his cap upon a stick, he poked it cautiously out from behind the tree, where it was silhouetted against the opening between the trees. A shot followed, and the cap leaped into the air.