Saintsville. The Undercurrent Saga, #1

A summoned warrior and a grief-stricken witch collide in a city under siege. In the sultry, supernatural underbelly of New Orleans, death comes calling with a name. As Infernal assassins begin stalking a magical district known as the Haint, an uneasy alliance forms between sworn enemies. Storm witch Lena Nevers summons a warrior's soul from another reality to settle an old debt, and everyone gets more than they bargained for-a displaced spirit, a demon-slayer, and a dark soul that hungers for more.
Awakening in a dead gangster's body with his true identity stripped away, the warrior finds himself an unwilling pawn in a supernatural power struggle. Taking the name and fractured memories of his host, Ciro Case, he must navigate a world where witches wield cosmic power, Lycans guard mystical neighborhoods, and vampires broker deals between all sides. In a city where every soul has a price and every spell demands payment, the greatest threat may not be the demons hunting in the shadows-it might be the hijacked soul or those seeking to bring him down.
Perfect for fans of Jim Butcher's Dresden Files or Kim Harrison's The Hollows series, Saintsville blends a political thriller, urban paranormal fantasy, and crime noir into a tale of divided loyalties and dark magic. Suitable for Adult and YA readers.