The Bleeding Dusk (The Gardella Vampire Hunters, #3)

To gain access to the secrets of a legendary alchemist, Rome's vampires have allied themselves with creatures as evil and bloodthirsty as they are. The new leader of the city's vampire hunters-Lady Victoria Gardella Grantworth de Lacy-reluctantly turns to the enigmatic Sebastian Vioget for help, just as Maximilian Pesaro arrives to aid his fellow slayers, no matter what the sacrifice. Desire puts her at the mercy of Sebastian, while loyalty binds her to Max, but she does not know if she can trust either. Especially when a seductive vampire begins luring her into the shadows...--From publisher description.