Dark Sorcerer Performing Ritual With Skeletons

A dark sorcerer in a tattered black robe, kneeling before a stone altar with a glowing purple skull, performing a ritual in a dimly lit crypt. Four skeletons with glowing green eyes are scattered around, emerging from the cracked stone floor. Torches cast warm, flickering light on the ancient stone walls, which are adorned with carved runic symbols. A mystical dark mist emanates from the sorcerer's hands towards the skull. Dark fantasy art style, mysterious, eerie mood, dramatic lighting, volumetric fog, deep shadows, and an atmosphere of ancient magic and occultism.