The Night Warriors: The Warrior's Rapture — Maggie O'Dempsey

Rivercast was in the midst of war. The streets of the once peaceful city were no longer safe, and the secrets that kept immortals in the dark were harder and harder to conceal from humans. Could the Night Warriors and their Alliance be enough to push back the forces of the Dark Overlord Malachi? Fate was sure they could, but only if they truly accepted her help and embraced the gift she had bestowed upon them, A One True Mate to fulfill their souls and unlock powers without equal.
Thaddeus, who had always been a warrior, a ninja known for his skills in combat and his introspective demeanor. There was a reason his fellow warriors called him the Zen Ninja. He was the one that was always calm and in control, but that control would find itself shattered with the arrival of a robed figure into the Night Warriors' Compound.
Fate had decided it was time for the calm to meet rapture.