Leech by Hiron Ennes

Set in a post-apocalyptic world, the story follows a doctor who is part of a parasitic hivemind that inhabits human hosts to maintain control over medical knowledge and practices. When a mysterious new parasite threatens this control, the doctor is sent to a remote, decaying chateau to investigate the death of the previous host. As the doctor uncovers dark secrets and confronts the sinister force, the narrative explores themes of identity, autonomy, and the struggle for power in a chilling, atmospheric setting.