A dark, atmospheric fantasy illustration suitable for a psychological thriller audiobook cover. The scene depicts a decaying, abandoned Victorian mansion on a stormy, moonlit night. Silhouetted, gnarled trees with claw-like branches frame the house, casting long, distorted shadows. In one of the upper windows of the mansion, a faint, eerie, pale blue light emanates, suggesting a hidden presence. The overall mood is unsettling and suspenseful, with a color palette dominated by deep blues, grays, blacks, and hints of ghostly pale light. The composition is centered on the menacing house, with a sense of isolation and dread. The style should be highly detailed and painterly, evoking a classic gothic horror feel, in a square 1024x1024 format, with no text or logos.