Well, here was the man supposed to be responsible for those signals in the sky. Undoubtedly he must be an exceedingly bold and clever secret agent of the Kaiser, a spy who had managed to pick up certain information, valuable from a military point of view, and was now industriously engaged in transmitting the same to a German station miles away. So much was settled. The question Amos was anxious to have answered was what Jack meant he and his chum should do in the matter. CHAPTER VIII. THE AWAKENING. “Amos!” That was Jack whispering softly in his ear, and the one addressed squeezed his chum’s arm to let him understand that he heard. “Do you see him up there?” “Sure.” “We want to creep up as close as we can.” “Then what?” “When you hear me begin to yell join in, and both rush toward him. Get that, do you, Amos?” “Yes, but he’s sure to break the cord, and let the kite go.” “All right. That answers our purpose,” Jack told him, which certainly was a fact the other had not considered--they were not trying to capture the kite that carried the twin red lights; it would be sufficient if they could induce the unknown spy to break the straining cord, and let the airy fabric bearing the signal lanterns float into space beyond, to eventually seek the ground. Once more the boys moved forward. The base of the low elevation lay before them, and Jack was now down on his hands and knees starting to make the ascent. It was beginning to get real exciting, and Amos felt his heart thumping heavily against his ribs as he contemplated the surprise and alarm of the spy when they started to giving tongue. As they drew closer they could make out what he was doing much better than before. He had something in his hands, which Amos at once decided must be the stick about which the stout cord had been wound. That the kite was of fair size and pulled at times rather strenuously he judged from the way the unknown used his arms. Jack seemed to be decidedly clever about this creeping business. Amos was afraid he could hardly be put in the same class as his cousin. He even feared that on several occasions he must have inadvertently snapped some small twig that his knees pressed heavily upon. The sounds seemed almost like thunder notes to Amos, so keyed up were the boy’s nerves, but that must have been mostly imagination, for the man did not appear to have become alarmed by the sound. There was no longer the slightest doubt concerning his occupation, for by now Amos could see that he certainly clutched some object that required considerable effort to hold. The kite probably was very large, Amos decided. Perhaps the man had already quite enough of his task, for they could plainly hear him grumbling to himself, and Amos was sure he caught low spoken words in unmistakable German.