They Rend

Sometimes to fight monsters…you must become one. When Nyxia White transforms, she realizes she possesses a fearsome weapon and power of the Darkin. There's only one problem, she doesn't know how to use them…yet. Gryn, an old sorcerer, has just the solution—intense training bordering on torture. Now, with little time, Nyx must survive Gryn's training, harness her new power and hunt down whoever kidnapped Acheron, before they rend him to ash—a demon extermination. In order to save her friend, she must become the monster other monsters fear.