After The Watchers
What Moves the Dead by T. Kingfisher
If The Watchers' Irish forest left you breathless with its slow-burn atmospheric terror, What Moves the Dead offers that same fog-shrouded wrongness—but this time, the horror is biological, fungal, colonizing from within. A decaying manor, folklore twisted into infection, and dread that doesn't scream but seeps into your marrow. This is the book that haunts you exactly how Shirley Jackson intended.