Smouldergeists appear as humanoid-shaped accumulations of smog and heat. They are soot-colored, save for white-hot circles where their eyes might be. They are pyromaniacs and spawn around sources of extreme heat. They enjoy blasting fire bolts at anything and everything, the sound of which prevents them from gaining surprise in an encounter. Smouldergeists are restless souls; they cannot be put at ease. They just want everything to burn.