The Beast (The Taint)

The Beast was the name given to a species of flying extra-dimensional parasites. They were normally invisible to most species. They would travel from planet to planet, feeding on the life force of the native populations without harming them, and departing after having their fill.

History
Centuries ago, the Beast travelled to Benelisa and fed on the natives, but since their population was so small, the Benelisans were unintentionally wiped out. Before dying, they sent out Azoth to locate and destroy the Beast. (EDA: The Taint)

In 1944, Nazi experiments created a dimensional tear that let the Beast come to Earth and feed on humans there. (EDA: Autumn Mist)

Azoth attempted to eradicate the Beast, but failed to do so. However by 2134, the Beast had departed Earth. (EDA: The Taint)