Althea and Lucas barely escaped the Others' clutches in the autumn, and were separated in the process. Alone and on the run from the cruel alien race determined to exterminate her, Althea struggles to adapt and survive in a world she never imagined. When a boy named Pax appears out of nowhere, he quickly recognizes Althea for what she is - a human/Other hybrid just like him. Althea begs him to help her find Lucas, but Pax refuses, intent on following his own mysterious agenda. The Others' presence continues to devour the planet's resources, and if history is an indication, they won't leave until Earth is destroyed beyond repair. Althea and Pax sense the only way to save themselves - and maybe their home - is to understand the powers simmering inside them. Together they push the limits of their capabilities in the quiet Wilds, but are soon confronted with a terrifying fact: no place is safe from the relentless pursuit of the Others. Least of all their own minds.