FASA 365 Day 58, from 1879 game, Samsut FAE

Edimmu – possessing demons. Astral in nature, when perceived astrally they resemble a torso and head with the extremities petering out into smoke, kind of like an evil genie. Usually have demonic features – horns, possibly the impression of body spikes that fade into smoke at the points, sharp and wicked facial features, pointed teeth. They possess people to cause chaos, ranging from simple mischief or full on murder if they’re corrupt.