"An extravagant debt requires an extravagant penance." Twenty years after she was saved from the vengeful justice of her great-grandfather, Augustus, beautiful Zosime has been carefully sheltered from the schemes of both her Julii family and those of her father, the crafty Sejanus. Raised in secret with her cousins by her aunt and uncle in Ombos, she has no ambitions beyond protecting them alongside her beloved teacher, Aetia. But when Aetia is summoned by the aging Emperor Tiberius to save him and the empire from the ever more powerful Sejanus, Zosime—disguised as her cousin—must leave the safety of her life in Egypt for the glamorous danger of her father's Rome. And when catastrophe sends her into his web of deceit alone, she'll have to rely on the most unlikely god of all to save the Egypt that she loves and the Rome that might be her destiny. But can she forgive the newly-divine Augustus before she falls under Sejanus's deadly spell?