The highly anticipated third volume of the haunting, troubling and evocative Southern Reach trilogy.

It is wintertime in Area X. A fresh team embarks over the border, on the mission to discover a member of a previous expedition who may have been left out. As they press deeper into the unidentified – navigating new terrain and fresh difficulties – the threat to the outside world becomes only more daunting. With this last instalment of the Southern Reach Trilogy, the mysteries of Area X may have been solved, but their consequences and implications are no less profound – or terrifying.