Vampire Curse: The Pendant - The Turning Series, #4

A pendant with a secret... A four-thousand-year-old curse, cast in the land of gods, threatens Apollo's twins... In a treacherous journey to break the curse of a pendant connected to his twins, Apollo travels to a land where vampires and werewolves were born-a land where good and evil, light and dark, collide. With time against him, he seeks to understand and alter his children's destiny while he confronts his foes who possess supernatural powers he never knew existed.
Now, Apollo must confront his past, face his present and make decisions that could alter his future. Will he save his children or lose them to the curse forever?