As Shadows Fade(2009)

Colleen Gleason

Vampires have met their match with Victoria Gardella, but now the huntress faces an even greater evil as London is besieged by malevolent entities no mortal was ever meant to encounter...

Directly descended from the very first vampire hunter in the Gardella family, Victoria knows she must continue the lineage so humanity will have protectors against the undead. While Sebastian Vioget appears to both the perfect warrior and lover to ensure the Gardella Legacy, Victoria cannot forget Max Pesaro--the former slayer still haunted by the vampire queen Lilith's obsession with him.

But it is Lilith's obsession that may save all of humanity. Demons, enemies of both mortals and the undead, have found their way to earth. To defeat them, vampires and slayers must fight side by side. But Lilith wants Max in return for her cooperation--a small price for the world, but too high a price for Victoria.