Rin is sure that something is wrong with her ... something really bad. Something that is keeping her from feeling at home in the Forest homestead where she's lived all her life. Something that is keeping her from trusting herself with anyone at all. When her brother Razo returns from the city for a visit, she accompanies him to the palace, hoping that she can find peace away from home. But war has come to Bayern again, and Rin is compelled to join the queen and her closest allies—magical girls Rin thinks of as the fire sisters—as they venture into the Forest toward Kel, the land where someone seems to want them all dead.

Many beloved Bayern characters reappear in this story, but it is Rin's own journey of discovering how to balance the good and the bad in herself that drives this compelling adventure.