It is winter in Area X. A new team embarks across the border on a mission to find a member of a previous expedition who may have been left behind. As they press deeper into the unknown—navigating new terrain and new challenges—the threat to the outside world becomes only more daunting.

In the final installment 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.