It now seemed as though the remainder of the summer would be undisturbed, and it would have been so as far as the Carthaginians were concerned. [2] But the Spanish temperament is restless and fond of change, and after the Romans had left the pass and retired to the [3??] coast, Mandonius and Indibilis, who had previously been chief of the Ibergetes, roused their fellow-tribesmen and proceeded to harry the lands of those who were in peace and alliance with Rome. [4] Scipio despatched a military tribune with some light-armed auxiliaries to disperse them, and after a trifling engagement, for they were undisciplined and without organisation, they were all put to rout, some being killed or taken prisoners, and a large proportion deprived of their arms. [5] This disturbance, however, brought Hasdrubal, who was marching westwards, back to the defence of his allies on the south side of the Ebro. [6] The Carthaginians were in camp amongst the Ilergavonians; the Roman camp was at Nova, when unexpected intelligence turned the tide of war in another direction. [7] The Celtiberi, who had sent their chief men as envoys to Scipio and had given hostages, were induced by his representations to take up arms and invade the province of New Carthage with a powerful army. [8] They took three fortified towns by storm, and fought two most successful actions with Hasdrubal himself, killing 15,000 of the enemy and taking 4000 prisoners with numerous standards.