Nocturnal Serenade: Nocturnal Alliance, Prequel 2 - Nocturnal Alliance, #2.5

Battered and defeated, cursed ex-mercenary Frank stumbles across a newly created vampire in revolutionary France. Discovering the vamp is immune to his death touch, Frank nurtures him back from his feral state. Irresistibly drawn to the man who emerges, Matthias is everything Frank dreamed of in a lover. Nobleman and secret hero, Matthias was betrayed by his wife and fed to vampires. Though he managed to escape, his rebirth resulted in a bloody rampage stopped only by the power of an indomitable banshee.
Kind, generous, and protective, Frank brings out Matty's vulnerable side, and Matthias finally feels safe to be his true self. When their tainted pasts threaten their peaceful life, Frank and Matthias unleash their full monstrous selves to protect the family they've built together. Nocturnal Serenade is a STAND ALONE story which contains strong language, descriptions of M/M sex, and violence. Intended for mature readers.????? Nocturnal Alliance is a 5 books series (plus 2 prequels of favorite characters) about a supernatural feud spanning back to the start of time.
Each book can be read as a stand-alone or part of the whole and have a Happily-Ever-After or Happy-for-Now ending. The characters include vampires and shifters, succubus and incubus, demons and angels, banshees and, yes, humans.