Mira stands between two worlds: a half-troll who never knew her human father. When her troll mother passes away, Mira breaks free of the Under into the Above, navigating the human world in search of leaving the clan that despises her. Matt hadn't expected a magical world hiding beneath Hedgefield. When Mira pleads for his help, he's dropped into a world of monsters from bedtime stories. The Above will be dangerous for Mira and Matt guides her through a world he is just rediscovering. Between these worlds stands Blanc LaBelle, a magical detective specializing in those of the Under coming to the surface. Whether it's rescuing someone taken captive by humans or eliminating a rogue monster, LaBelle keeps peace between the Under and the Above. LaBelle takes the case to find Mira's father, but what he learns along the way could reshape the Under and take the Above with it.