Cass shrieks awake. She is still having nightmares after her narrow escape from a killer. She is trying to put it all behind her and settle into her life. That means reconciling with her fiance Luca and letting go of Falco. Cass and Luca are getting along and things are going well, but her heart is torn. She clutches tightly to the one and only letter she received from Falco since he left. Is it possible to be in love with two people? Then tragedy strikes. Guards storm the villa and arrest Luca for supposed heresy. He has been falsely accused and sentenced to die in a month, unless Cass can prove his innocence. The only way she can do that is by finding a mysterious book called The Book of the Eternal Rose. She heads to Florence in hopes of finding this book. Florence, however, presents all new deadly dangers. There are rumors of vampires and girls are being put to death for consorting with vampires. Treachery and danger lurk around every corner. Can Cass free her fiance by finding The Book of the Eternal Rose?