Thirteen-year-old Kathleen "Kat" Gallagher has had it with her family. The eldest of three children, Kat feels trapped ever since her parents’ separated and she had to take on more responsibility than she feels prepared for. Everything changes on a frigid morning in mid-December when an accident propels Kat into unfamiliar territory.
Stuck in the place where people go when they have died before their time, Kat must face obstacles she could never have imagined.
With the help of other young inhabitants of the Realm of the Lost, Kat learns the true meaning of friendship and family.