When the Romans thus saw their hated and still dreaded foe involved in a greater danger than any ever brought on that foe by the Roman wars, they began more and more to regret the conclusion of the peace of 513 —­which, if it was not in reality precipitate, now at least appeared so to all—­and to forget how exhausted at that time their own state had been and how powerful had then been the standing of their Carthaginian rival.  Shame indeed forbade their entering into communication openly with the Carthaginian rebels; in fact, they gave an exceptional permission to the Carthaginians to levy recruits for this war in Italy, and prohibited Italian mariners from dealing with the Libyans.  But it may be doubted whether the government of Rome was very earnest in these acts of friendly alliance; for, in spite of them, the dealings between the African insurgents and the Roman mariners continued, and when Hamilcar, whom the extremity of the peril had recalled to the command of the Carthaginian army, seized and imprisoned a number of Italian captains concerned in these dealings, the senate interceded for them with the Carthaginian government and procured their release.  The insurgents themselves appeared to recognize in the Romans their natural allies.  The garrisons in Sardinia, which like the rest of the Carthaginian army had declared in favour of the insurgents, offered the possession of the island to the Romans, when they saw that they were unable to hold it against the attacks of the un-conquered mountaineers of the interior (about 515); and similar offers came even from the community of Utica, which had likewise taken part in the revolt and was now hard pressed by the arms of Hamilcar.  The latter suggestion was declined by the Romans, chiefly doubtless because its acceptance would have carried them beyond the natural boundaries of Italy and therefore farther than the Roman government was then disposed to go; on the other hand they entertained the offers of the Sardinian mutineers, and took over from them the portion of Sardinia which had been in the hands of the Carthaginians (516).  In this instance, even more than in the affair of the Mamertines, the Romans were justly liable to the reproach that the great and victorious burgesses had not disdained to fraternize and share the spoil with a venal pack of mercenaries, and had not sufficient self-denial to prefer the course enjoined by justice and by honour to the gain of the moment.  The Carthaginians, whose troubles reached their height just about the period of the occupation of Sardinia, were silent for the time being as to the unwarrantable violence; but, after this peril had been, contrary to the expectations and probably contrary to the hopes of the Romans, averted by the genius of Hamilcar, and Carthage had been reinstated to her full sovereignty in Africa (517), Carthaginian envoys immediately appeared at Rome to require the restitution of Sardinia.  But the Romans, not inclined to restore their booty, replied with frivolous