"A fascinating world, absolutely delightful characters, and enemies-to-loves romance--this book is one readers will devour before begging for more." --Tricia Levenseller, New York Times bestselling author of Blade of Secrets Gideon the Ninth meets the Game of Thrones White Walkers in this dark, "swiftly paced" (Publishers Weekly) young adult fantasy about a disgraced ghost-fighting warrior who must...