Fans of author Jeff VanderMeer's Southern Reach quadrilogy will be pleased to know that it's not going to be a quadrilogy much longer. VanderMeer took to social media to tease the fifth and final book in the series, dubbed Abdication. Abdication, the last Southern Reach novel!" VanderMeer wrote on Bluesky. VanderMeer followed up that news with a photo of the manuscript's table of contents page:Image Credit: Jeff VanderMeerThe Southern Reach series began with 2014's Annihilation, which was quickly followed by the release of the sequels Authority and Acceptance.