But if Cabot could once get on the air and adjust the Formian sending set to the wave-length of Luno Castle, or run it through all its available wave-lengths, he could broadcast to the Cupian nation the fact that he was alive and well, and would return again—though he knew not how—to lead them. Such news should strengthen the hearts of the loyal Cupians to rally to the cause of his wife, the Princess Lilla, and his son, the baby king. So he quickened his pace, and soon caught sight again of the messenger ant. From, then on he stealthily stalked his quarry, who led him through many a winding passage-way, before finally they emerged from the city into the open fields. Beyond the fields lay the rocky foothills of a mountain range. Caution dictated that Cabot remain under the shelter of the city walls until the Formian disappeared among the rocks. Then he ran lightly across the plain to take up the trail once more. As he, too, gained the rocks, he glanced back to see if his departure had been noted. No, there was no sign of life. Evidently the fighting had drawn all the inhabitants to the interior of the city. So, with a sigh of relief, Myles hurried after the messenger ant. At the place where Myles had noticed the Formian enter the rocks there was the well-defined beginning of a trail; so up this winding trail he sped, and soon caught sight of his quarry. From that time on more caution was necessary, but nevertheless the pursuer was able to keep the pursued always in sight until, just after a turn in the road had obscured his view, Myles came upon a place where the way forked. Pausing, he scratched his head in dismay, then carefully examined the ground for evidences of claw marks; but none were apparent. Dropping to his hands and knees, the earth-man scrutinized the dirt with even more care; and at last, imagining that he observed some slight scratches to the right, he took the right-hand branch. It was necessary for him to proceed with great rapidity, if he would catch up with the messenger ant, so Myles broke into a dog trot. On and on he ran; up, into the rocky mountains. At last he sat down exhausted on a large boulder, just as the silvery sky turned crimson in the west, and darkness crept up out of the east. It was quite evident that he had taken the wrong road at the fork, and also that he must now spend the night, half clad and alone amid the rocks of the mountains of this strange new continent. V LOST AMID THE ROCKS But although Myles Cabot was lost, he was free for the first time since his return to Poros. So not disheartened he arose and proceeded along the trail, looking for food and a place to spend the night; and presently came upon a “green cow,” as he was wont to call the aphids which are kept both by Cupians and Formians for the honey-dew which they produce.