Excerpted from Marge Hollander's Digest of Demons and Devils:"Little is known about the origins of the Udushae N'yasnu. There is a rumored Gnostic legend that on the seventh day of creation, after God had finished his work, the Udushae were the left over flotsam. Before God could return the unformed creatures to the void, they skittered into the darkest corners of creation and hid. Regardless of their origins, a recorded characteristic of the Udushae is their thirst for human bodily fluids.
Over a period of days or weeks, chosen victims of the Udushae are slowly drained of vital fluids during sleep. Often the symptoms of an Udushae assault are confused with that of a Vampyr attack. However the Udushae feed exclusively on human fluids whereas a Vampyr will feed on any available source of blood including livestock, family pets, and local wildlife. Also absent in an Udushae attack are the telltale puncture wounds left by a Vampyr. It is generally assumed that the Udushae drain fluids from the body of the victim directly through existing orifices.
