Harry now had Bruno with him, and leaving his horse, he, with the dog, made his way to the front, in order to discover, as far as possible, the plans and position of the enemy. So dense was the undergrowth he could not see thirty feet ahead of him, but Bruno, as stealthy as a tiger in the jungle, crept through the bushes ahead of him and more than once gave him warning to turn aside his steps and take another direction. At last he came to quite a hill, on the summit of which grew a tree with branches close to the ground. Leaving Bruno to guard, Harry climbed the tree, and to his satisfaction had a good view of the country. But what he saw filled him with consternation. The road on which the Federals were marching was narrow and on each side lined with dense underbrush. Ahead of the Federal advance, the road itself was clear, not a guerrilla in sight, but Porter had left his camp and all his forces were stealthily creeping through the woods, and concealing themselves in the bushes which lined the road. Harry knew that that meant an ambuscade, and the Federal advance was almost into it. In his eagerness he hardly knew whether he fell, jumped, or swung himself down by the branches, but he was out of the tree and tearing through the brush like a mad man to give warning. He came to the road just as Colonel Guitar came along, riding at the head of his column, the advance, consisting of twenty-five men of Company E, Third Iowa Cavalry, being a short distance ahead. "Halt the advance. Ambuscade," gasped Harry. He could say no more, as he fell from exhaustion. [Illustration: "Halt the advance. Ambuscade," gasped Harry.] Guitar understood. "Halt," he cried, and to an aid, "Warn the advance." The aid put spurs to his horse, but he was too late. Before he could give warning there came a crashing volley from the jungle on the east side of the road, the thicket burst into flame and smoke. It was an awful, a murderous volley. Out of the twenty-five men who composed the advance, hardly a man or horse escaped unscathed; all were killed or wounded. Swift and terrible as this blow was, it created no panic in Guitar's little army. The road was narrow, thickets on each side. Nothing could be done with cavalry. Quickly the order was given to dismount and send the horses back in charge of every fourth man. Guitar then formed his slender line in the edge of the thicket on the west side of the road, with orders to hold until Shaffer came up, for Shaffer was still behind. Hearing the sound of the conflict, Shaffer rushed forward, sent back his horses, and along the road and through the tangled undergrowth the line was formed and the battle became general.