He had beheld what was almost the ghost of a horseman galloping among the trees, followed in an instant by the more solid rush of the cavalry. It was evident to both Sherburne and Harry that the Federal pickets and outriders had acquired much skill and alertness, and they urged the troop to its greatest speed. Even if they should be able to defeat their immediate pursuers, it was no place for them to engage in battle, as the enemy could soon come up in thousands. As they galloped down the road they heard bullets kicking up the dust behind, and the sound made them go faster. But they were still out of range and the pursuit did not make any gain in the next few minutes. But Harry, looking back, saw that the Union cavalry was hanging on grimly, and he surmised also that other forces might appear soon on their flanks. "We've got to use every effort," he said to Sherburne. "That's apparent. You were right about your man Shepard, Harry. He has certainly inherited all the eyes of his ancestor, Argus, and about three times as many besides. He's omniscient, right enough." "Are they gaining?" "Not yet. But they will, as fresh pursuers come up on the flank. Some of us must fall or be taken, but then at least one of us must get back to Old Jack with the news. So we're bound to scatter. When we reach that patch of woods on the left running down to the road, you're to leave us, gallop into it and make your way back through the gorge. I'll throw off the other messengers as we go on." "Must I be the first to go?" "Yes, you're under my orders now, and I think you the most trustworthy. Now, Harry, off with you, and remember that luck is with him who tries the hardest." They were within the dark shade of the trees and Harry turned at a gallop among them, guiding his horse between the trunks, pausing a moment further on to hear the pursuit thunder by, and then resuming his race for the gorge. He continued to ride at a great pace, meeting no enemy, and at last reached the creek. He was a good observer and he was confident that he could ride back up it without trouble. He feared nothing but Shepard. A single horseman in the darkness could throw off any pursuit by cavalry, but the terrible spy might turn at once to the creek and the gorge. He had the consolation, though, of knowing that Shepard could not follow him and all the others at the same time. Harry paused a moment at the water's edge and listened for the sounds of pursuit. None came. Then he plunged boldly in and rode against the stream, passing into the depths of the gorge. It was darker now, being near to that darkest hour before the dawn, and the slit of sky above was somber. But he rode on at a good walk until he was about half way through the gorge. Then he heard sounds above, and drawing his horse in by the cliff he stopped and waited. Voices came down to him, and once or twice he caught the partial silhouette of a horse against the dark sky.