Human: Generate for a spooky scene inside of a cave with rubble, walls, and shards. Assistant: 
Deeply embedded in the walls is an array of translucent shards, stuck fast as if hurled like arrows from a giant crossbow. Chime-like overtones ring out from the shards as they quiver and pulse in sympathy with a deep, persistent thrumming that fills the air. Rubble lies strewn everywhere, and so pockmarked is the ceiling and walls that it's a wonder the cavern is actually able to support itself against the constant vibrations.