The Alchemist's Heart of Dunhill

In the gaslit city of Dunhill, Cole McDowell, the last heir of a disgraced alchemical line, lives in the shadow of the fanatical Order that executed his parents. On his 21st birthday, he inherits a forbidden legacy: a sentient, alchemical Heart that bonds with his soul, granting him immense power and an instant death sentence. Now hunted by the Order's most ruthless Inquisitor, Cole must dive into the city’s criminal underworld, mastering the very arts that destroyed his family. To survive, he must become the heretic they fear he is.