Byakhees are strange creatures that appear to be a mixture of rotting humanoids, crows, and ants. Although they make their home in interstellar space and other lonely voids, byakhees are frequently encountered as agents of some malign agenda.
Spacefaring Nature. The byakhee does not require air and is immune to the natural perils of vacuum (extreme heat and cold, zero pressure).
From afar or in poor lighting, rat-things look more or less like large, dark rats. Upon closer inspection, however, their small, humanoid hands and distorted human heads betray their horrible nature.
Rat-things are crafted by hags, sorcerers, and other spellcasters of the dark arts from the remains of dead cultists. Effectively immortal, rat-things will live forever so long as they are not killed.