Hoping to find his lost brother, Rownie escapes the home of the witch Graba and joins a troupe of goblins who perform in Zombay, a city where humans are forbidden to wear masks and act in plays.
When the music of a bone flute given to her by a goblin separates Kaile's shadow from herself, her family believes she has died and become a ghoul, and Kaile must set out to prove that she still lives.