Mahogany, a human living in the magical town of Pandemonium, Oregon, has taken a job collecting enchanted relics from deceased magical folk. While on a routine collection, Mahogany finds the wizard and his apprentice murdered. But that's not the worst part; the murderer is still in her house! Mahogany narrowly escapes with the help of her demon spider Bazgul, only to discover that she is now haunted by the apprentice's ghost until she solves his murder.
With the help of Bazgul and her new ghost, Mahogany breaks into police evidence to retrieve the enchanted objects before the Guild of Myth and Magic discovers that the relics have fallen into human hands. But Mahogany gets more than she bargained for when she uncovers a clue to her family's past that intrinsically links her to the murdered wizard. Now Mahogany must race to find the murderer before she becomes the next victim.