Meanwhile Hamilcar was scouring the eastern districts. He drove back the Gauls, and all the Barbarians found that they were themselves in something like a state of siege. Then he set himself to harass them. He would arrive and then retire, and by constantly renewing this manouvre, he gradually detached them from their encampments. Spendius was obliged to follow them, and in the end Matho yielded in like manner. He did not pass beyond Tunis. He shut himself up within its walls. This persistence was full of wisdom, for soon Narr’ Havas was to be seen issuing from the gate of Khamon with his elephants and soldiers. Hamilcar was recalling him, but the other Barbarians were already wandering about in the provinces in pursuit of the Suffet. The latter had received three thousand Gauls from Clypea. He had horses brought to him from Cyrenaica, and armour from Brutium, and began the war again. Never had his genius been so impetuous and fertile. For five moons he dragged his enemies after him. He had an end to which he wished to guide them. The Barbarians had at first tried to encompass him with small detachments, but he always escaped them. They ceased to separate then. Their army amounted to about forty thousand men, and several times they enjoyed the sight of seeing the Carthaginians fall back. The horsemen of Narr’ Havas were what they found most tormenting. Often, at times of the greatest weariness, when they were advancing over the plains, and dozing beneath the weight of their arms, a great line of dust would suddenly rise on the horizon; there would be a galloping up to them, and a rain of darts would pour from the bosom of a cloud filled with flaming eyes. The Numidians in their white cloaks would utter loud shouts, raise their arms, press their rearing stallions with their knees, and, wheeling them round abruptly, would then disappear. They had always supplies of javelins and dromedaries some distance off, and they would return more terrible than before, howl like wolves, and take to flight like vultures. The Barbarians posted at the extremities of the files fell one by one; and this would continue until evening, when an attempt would be made to enter the mountains. Although they were perilous for elephants, Hamilcar made his way in among them. He followed the long chain which extends from the promontory of Hermæum to the top of Zagouan. This, they believed, was a device for hiding the insufficiency of his troops. But the continual uncertainty in which he kept them exasperated them at last more than any defeat. They did not lose heart, and marched after him.