Mist
From DwarfFortressWiki
Mist is created by water falling from one Z-level to another. Walking through it generates a happy thought for a dwarf. Do not confuse with magma mist; this does not create a happy thought for the dwarf.
Mist is created by water falling from one Z-level to another. Walking through it generates a happy thought for a dwarf. Do not confuse with magma mist; this does not create a happy thought for the dwarf.