It was at Rome, in the year 102 B.C., that he learned how the Kymrians, weary of Spain, had recrossed the Pyrenees, rejoined their old comrades, and had at last resolved, in concert, to invade Italy; the Kymrians from the north, by way of Helvetia and Noricum, the Teutons and Ambrons from the south, by way of the maritime Alps. They were to form a junction on the banks of the Po, and thence march together on Rome. At this news Marius returned forthwith to Gaul, and, without troubling himself about the Kymrians, who had really put themselves in motion towards the north-east, he placed his camp so as to cover at one and the same time the two Roman roads which crossed at Arles, and by one of which the Ambro-Teutons must necessarily pass to enter Italy on the south. They soon appeared “in immense numbers,” say the historians, “with their hideous looks and their wild cries,” drawing up their chariots and planting their tents in front of the Roman camp. They showered upon Marius and his soldiers continual insult and defiance. The Romans, in their irritation, would fain have rushed out of their camp, but Marius restrained them. “It is no question,” said he, with his simple and convincing common sense, “of gaining triumphs and trophies; it is a question of averting this storm of war and of saving Italy.” A Teutonic chieftain came one day up to the very gates of the camp, and challenged him to fight. Marius had him informed that if he were tired of life he could go and hang himself. As the barbarian still persisted, Marius sent him a gladiator. However, he made his soldiers, in regular succession, mount the ramparts, to get them familiarized with the cries, looks, arms, and movements of the barbarians. The most distinguished of his officers, young Sertorius, who understood and spoke Gallic well, penetrated, in the disguise of a Gaul, into the camp of the Ambrons, and informed Marius of what was going on there. At last the barbarians, in their impatience, having vainly attempted to storm the Roman camp, struck their own, and put themselves in motion towards the Alps. For six whole days, it is said, their bands were defiling beneath the ramparts of the Romans, and crying, “Have you any message for your wives? We shall soon be with them.” Marius, too, struck his camp, and followed them. They halted, both of them, near Aix, on the borders of the Coenus, the barbarians in the valley, Marius on a hill which commanded it. The ardor of the Romans was at its height; it was warm weather; there was a want of water on the hill, and the soldiers murmured. “You are men,” said Marius, pointing to the river below, “and there is water to be bought with blood.” “Why don’t you lead us against them at once, then,” said a soldier, “whilst we still have blood in our veins?” “We must first fortify our camp,” answered Marius quietly.