Hannibal's Children Series by John Maddox Roberts

An alternative history, in which Hannibal was victorious over the Romans, but decided to spare their nation. The hardy Romans travelled northwards to Norcium, and created a new Rome, where they bided their time. A century later, reborn, the Romans return to Italy to reclaim their lands and to confront again the Carthagenians.

John Maddox Roberts's provocative Hannibal's Children answered a fascinating question: What if Rome fell to Carthage, then rose again? Now, the Romans' victory is complete, but their legendary unity-and commander Marcus Scipio's leadership-will be tested...