Human: Generate for me a description of a mystical scene inside a cave cavern with obelisks. Assistant: 
Seven crude limestone obelisks stand peculiarly out of place, apparently cut from nearby stalagmites and arranged into a small circle in some long-forgotten ceremony. A towering chimney breaks the roof above the monoliths, allowing a distant glimpse of starlit sky. As drafts of wind whistle downward through the stone passage, the higher galleries produce a resonant hum, culminating in an ethereal song that echoes throughout the cavern.