A.M. Bennett

A perfect weapon never asks questions. Until it's pointed at the truth. Riven Ashborne is a weapon. As a shadow-wielding enforcer for Ravenholt's corrupt elite, he makes the city's problems disappear. But his discipline shatters when a routine job exhumes the traumatic history of his own childhood. Ordered to assassinate a journalist probing Riverforge Docks, Riven expects a straightforward hit. Instead, he finds a single mother holding the missing pieces to his past.
For the first time in a decade, the perfect enforcer disobeys. Defying Highspire carries a lethal price. Hunted by a Surge-addicted shifter, Riven must turn his magic against the men who built him to protect the target he was sent to kill. Failure means the fighting pits, or an unmarked grave. Mercy ends in silver ash. Vengeance waits for the dawn.