1970s Retro Dark Fantasy D&D Book Cover

1970s retro dark fantasy book cover art, dungeons and dragons style, Medium full shot, eye-level view, three figures kneel in the foreground around a lit candle held in an ornate holder, the central figure in a white robe sits on the left, reaching out to the figure opposite, while a third person crouches behind them in shadow, all framed by the arched entrance of a stone chamber. Dominating the background, an enormous horned goat demon with muscular anatomy, goat-like features, and glowing eyes looms over the group, its towering form nearly filling the archway, silhouetted against an eerie green-lit backdrop.