Cold iron task

"Grimsby, a junior Auditor in the magical Department of Unorthodox Affairs, finds himself on the other side of the law in this spellbinding urban fantasy. Grimshaw Griswald Grimsby may have one case under his belt, but he's still a novice Auditor in Boston's Department of Unorthodox Affairs. And he's already made mistakes. Desperate to repair his fraying friendships, he doesn't ask too many questions when a mysterious patron offers him the chance...