Oksa Pollock has discovered that she's the queen of the magical land of Edefia. As if that wasn't enough for any thirteen-year-old to be dealing with, her mother is still desperately ill and now her best friend, Gus, has become trapped in the Forest of Lost Souls. In the forest the group, Oksa and a few fellow Runaways-including the moody, mysterious Tugdual, must all face their own personal demons, not to mention an assortment of horrific creatures, in a desperate attempt to bring Gus back alive.