The Arbrans were the extinct civilization that were originally native to the planet Arbra, during the time of Xim the Despot. It was the Arbrans who created the unusual force screen, deep beneath Arbra's surface, within which they stored all their negative energies. Over time, these negative energies reached a critical mass and coalesced into the Darker. The Arbrans themselved eventually died out, and very few records survived to describe their civilization.