A professional, gritty thriller book cover for an audiobook titled "Pantera" by Nelson DeMille. The visual style should be cinematic and suspenseful, evoking a sense of urban danger and covert operations. The main imagery should feature a stylized, dark silhouette of a powerful panther, subtly blending into the background of a neon-lit, rain-slicked New York City street at night. Hints of danger could be represented by faint, glowing red eyes within the panther's silhouette or sharp, angular shadows. The color palette should be dominated by deep blues, blacks, and grays, punctuated by harsh, contrasting neon lights (electric blue, fiery red, toxic green) reflecting off wet surfaces. The mood should be tense, mysterious, and dangerous. The composition should be striking and impactful, with the title prominently displayed in a bold, sans-serif font that feels modern yet slightly distressed. The author's name should be clearly visible but secondary to the title. The overall aesthetic should be clean, high-contrast, and immediately communicate the genre and intense atmosphere of the book. Aspect ratio: 1024x1024.