In this climactic volume of the Southern Reach series, the mysteries of Area X may have been solved, but their consequences and implications are no less profound—or terrifying. This 10th Anniversary Edition of Acceptance features a new introduction by award-winning author Helen Macdonald.

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.