A. J. Steiger 
Cathedral of Bones [EPUB ebook] 

A stunningly imagined world, page-turning thrills, and a pair of unlikely heroes on an epic quest make this unique and immersive dark fantasyfrom acclaimed author A. J. Steigerperfect for fans of Holly Black and Kelly Barnhill. Simon Frost lives in a curious place, where magic is used by the very best Animists to do wondrous thingslike call upon imps, wraiths, and all manner of monsters to right wrongs, deliver justice, and accomplish feats no human could achieve. Simon Frost is not one of those Animists, though hes been trying to become one for years. When a plea arrives from a distant hamlet, preyed upon by an abominable monster, Simon sees the opportunity to finally prove his worth. But upon arriving in the tiny village, Simon finds not just a monster but a key to his pastand a pathway into an unbelievable future.