A moody, atmospheric audiobook cover art in a square 1024x1024 format, without any text. The style should be dark, gritty realism with a touch of noir. The central image is a solitary figure, a man, seen from behind, walking away down a dimly lit, rain-slicked urban street at night. His silhouette is indistinct, suggesting anonymity and desperation. He is wearing a trench coat, slightly damp. The streetlights cast long, distorted shadows, creating a sense of unease and pursuit. In the background, subtle, blurred shapes of buildings loom, appearing almost menacing. The color palette is dominated by deep blues, blacks, and grays, with stark highlights from the streetlights in muted yellow and white. The overall mood is one of isolation, paranoia, and an overwhelming sense of being hunted. The composition should feel cinematic and capture the tension of a desperate flight.