The Lost Centurion: 1 (The Immortals)

The chains of Love are stronger than the bonds of Revenge The Roman centurion Marcus has sworn to avenge his wife's death—even if it takes an eternity to hunt down the vampire who murdered her. Turned immortal by a capricious god, for the last two thousand years, Marcus has been living a life devoid of love, consumed by his hatred for the vampire race. Until the night he rescues one of them, a frail newborn vampling, Diana, and she becomes his responsibility. Tortured by his past and hunted by vampires, Marcus must choose between avenging his dead wife or saving Diana from the same man who ruined his life, only to discover that not everything is what it appears to be.