 On top of all this, it is stated by Donald Morgan in "Turn Coat" that when a skinwalker kills a spellcaster, it consumes the victim's magic and adds that power to its own.The Skinwalker that appears in the book initially follows the injured Morgan into Chicago, hoping to add his considerable power to its own.In the course of the novel, it defeats Harry and the forces of the White Court at their home estate, captures and tortures Thomas, forcing him to use his White Court powers repeatedly to survive, kills one of the Alpha Werewolves and maims another, and also beats Harry again at the Battle of Demonreach Island.