1 Mathos for his own part continued to prosecute the siege of Hippacritae, advising Autaritus, the leader of the Gauls, and Spendius to hara** the enemy. 2 Keeping away from the plains owing to the numbers of the cavalry and elephants opposed to them but marching along the foothills parallel to the Carthaginians and descending on them whenever they were on difficult ground. 3 While adopting this plan he at the same time sent messages to the Numidians and Libyans, begging them to come to his a**istance and not lose the chance of gaining their freedom. 4 Spendius, taking with him from Tunis a force of about six thousand men in all drawn from all the tribes, advanced along the slopes parallel to the Carthaginians. 5 He had also with him Autaritus and his Gauls numbering only about two thousand, the rest of the original corps having deserted to the Romans when encamped near Eryx. 6 Hamilcar had established his camp in a plain surrounded by mountains, and just at this time Spendius was joined by the Numidian and Libyan reinforcements. 7 The Carthaginians, suddenly finding the additional force of Libyans in their front, and that of the Numidians in their rear, while Spendius was on their flank, were in a very difficult situation, from which it was not easy to extricate themselves.