Human: Write a detailed description of a spooky cavern scene with fissures, steam, blackness, and glaes. Assistant: 
The tunnel twists like a drake's tail, its glaes walls scarred and pocked with fissures. Little spouts of steam burst from the openings at intervals, then wisp away to nothing leaving a scent of sulfur. To the northeast, the passageway twists away from the formation of red glaes, the ruby glow from the rock chasing it away through the blackness like a trail of fire.