against the dwellings of the barbarians, whose doors were open to the caecias. The barbarians, having only the single opening to breathe through, upon which the wind fell, had their vision quickly obscured, and they were speedily overpowered by a suffocating difficulty of breathing, by reason of respiring a thick atmosphere filled with dust. Accordingly, after holding out with difficulty for two days, they surrendered on the third, and thus added not so much to the power as to the reputation of Sertorius, who had taken by stratagem a place that was impregnable to arms. XVIII. Now, as long as Sertorius had to oppose Metellus, he was generally considered to owe his success to the old age and natural tardiness of Metellus, who was no match for a daring man, at the head of a force more like a band of robbers than a regular army. But when Pompeius had crossed the Pyrenees, and Sertorius had met him in the field, and he and Pompeius had mutually offered one another every opportunity for a display of generalship, and Sertorius had the advantage in stratagem and caution, his fame was noised abroad as far as Rome, and he was considered the most able general of his age in the conduct of a war: for the reputation of Pompeius was no small one; but at that time particularly he was enjoying the highest repute by reason of his distinguished exploits in the cause of Sulla, for which Sulla gave him the name of Magnus, which means Great, and Pompeius obtained triumphal honours before he had a beard. All this made many of the cities which were subject to Sertorius turn their eyes towards Pompeius, and feel inclined to pass over to him; but their intentions were checked by the loss at Lauron,[151] which happened contrary to all expectation. Sertorius was besieging this town, when Pompeius came with all his force to relieve it. There was a hill, well situated for enabling an enemy to act against the place, which Sertorius made an effort to seize, and Pompeius to prevent its being occupied. Sertorius succeeded in getting possession of the hill, on which Pompeius made his troops stop, and was well pleased at what had happened, thinking that Sertorius was hemmed in between the city and his own army; and he sent a message to the people in Lauron, bidding them be of good cheer, and to keep to their walls and look on while Sertorius was blockaded. Sertorius smiled when he heard of this, and said he would teach Sulla's pupil (for so he contemptuously called Pompeius) that a general should look behind him rather than before. As he said this he pointed out to his men, who were thus blockaded, that there were six thousand heavy armed soldiers, whom he had left in the encampment, which he had quitted before he seized the hill, in order that if Pompeius should turn against them, the soldiers in camp might attack him in the rear. And Pompeius too saw this when it was too late, and he did not venture to attack Sertorius for fear of being surrounded;