It was the third night after the Carthaginians had reached the river when Hannibal ordered Hanno, one of his most trusted generals, to take a body of his best troops up the stream, to a place out of sight and sound of the Gallic camp, where one of the friendly guides had told him that a passage might be made. The country at this point was lonely, and the detachment met with no enemies along the road, and no one hindered them in felling trees and making rafts to carry them to the further bank. Early next morning they all got across, and then by Hannibal's express orders rested and slept, for he never allowed his soldiers to fight when exhausted. Before dawn they started on their march down the left bank, sending up, as soon as it was light, a column of smoke to warn Hannibal that everything had gone smoothly, and that he might now begin to cross himself. His men were all ready, and without hurry or confusion took their places. The heavy-armed cavalry, with their corselets of bronze, and swords and long spears, entered the larger vessels; two men, standing in the stern of every boat, holding the bridles of three or four horses which were swimming after them. It must have required great skill on the part of the oarsmen to allow sufficient space between the boats, so that the horses should not become entangled with each other, but no accident happened either to the larger vessels or to the canoes which contained the rest of the foot. [Illustration: The Gauls poured out of their camp shouting and screaming with delight.] Exactly as Hannibal expected, for he always seemed to know by magic the faults that his enemy would commit, at the sight of the Carthaginian army on the river the Gauls poured out of their camp, and crowded to the bank, shouting and screaming with delight and defiance. There they stood, with eyes fixed on the advancing boats, when suddenly Hanno's men came up and attacked them from behind. They turned to grapple with this unexpected enemy, thus giving Hannibal time to land his first division and charge them in the rear. Unable to stand the twofold onslaught, the Gauls wavered, and in a few minutes disappeared in headlong flight.