In an enchanted, perilous Florence where forbidden power could ignite a war, sculptress Ravenna Maffei shapes beauty from stone while hiding a dangerous secret. Desperate to save her brother, she enters a competition hosted by Florence’s most feared immortal family, revealing a dark power in a city where magic is forbidden. Now a captive in the cutthroat city, Ravenna is forced into a treacherous task where failure means certain death at the hands of Saturnino dei Luni, the immortal family's mesmerizing but merciless heir. As he draws her closer, Ravenna realizes the true threat lies beyond Florence’s walls. The Pope’s war against magic is closing in, and Ravenna is no longer just a prisoner but a prize to be claimed. As trusting the wrong person becomes lethal, Ravenna must survive the line between a pope's obsession and the seductive immortal who might be her end—or surrender her power to a city on the brink of war.