A darkly atmospheric, square 1024x1024 illustration suitable for a psychological thriller audiobook cover. The central image is a shadowy, dilapidated manor house at twilight. Twisted, bare tree branches claw at the sky surrounding the house. A faint, unsettling mist hovers around the ground, obscuring the base of the structure. The sky is a deep, bruised purple and grey, with hints of an almost extinguished orange sun on the horizon, casting long, distorted shadows. The overall mood is one of unease, mystery, and isolation. The style should be painterly and textured, with a focus on dramatic lighting and shadow play. No text or logos whatsoever.