"476 a.d.: The Roman Empire, riddled with corruption and staggered by centuries of barbarian onslaughts, now faces its greatest challenge---not only to its wealth and prestige, but to its very existence." In his riveting novel "The Sword of Attila," Michael Curtis Ford thrilled readers with his recounting of a cataclysmic clash of ancient civilizations. Now, in "The Fall of Rome, "he takes on the bloody twilight of empire, as the legacy of Attila---once...