The Halls of Midnight - Kevan Dale - Bog

Sorcery wagers with madness, mayhem, death, and eternal torment. Has Finch’s luck run out?
Kate Finch is an indispensable apprentice at last—yet she’s plagued with worry and self-doubt. Nothing is good enough, fast enough, magnificent enough for her mentor August Swaine. More and more demons infest the colony. And everyone she’s relied on to keep her secrets is under surveillance by the new Governor, a man committed to obliterating the practice of the unseen arts at all costs.
Just as Finch grasps the true peril threatening the colony, she confronts the one choice she’s not prepared for: betray her master, or watch him pay the cruelest price of sorcery.
Her untamed witchcraft saved her time and time again—but Finch is out of time.
Is she also out of luck?