In this second book of the Darklings trilogy, Gabriella Caprella Contessa d'Asiago leaves Venice and returns to her native New York when she learns that her parents are in grave peril. The young mouse, discovering her parents' past not as innocent as she once believed, is soon convinced that their lives are threatened by an old and powerful enemy. Her friend, the Bat Prince Mercurio, remains devoted as ever to the beautiful mouse, despite the stern disapproval of the Colony and his father, the King. Fearing for her safety, the Prince secretly accompanies Gabriella to New York. But not only are Gabriella and her parents in danger. The existence of the Rodent Republic of Venice is also at stake. A trail of murder and intrigue leads to the fabulous Treasure of Venice... and the key to fates of them all.