Schnarrd

I believe the most likely scenerios are either a demonic being or a portal to a demonic realm. In support of these theories, consider that Jeff always leaves clues as to the plot of sequal games - in Geneforge 1, for example, he mentioned several times specifically that drayks were so intelligent and independent that they were banned by the shaper council. Consequently, one only has to consider which creatures were introduced in Geneforge 2, but only superficially. Drakons were covered pretty well, but both gazers / eyebeasts and demons have plenty of room for development. Plus, Jeff seems to like using creatures from the demonic realm in his games (remember the Exile and Avernum series!).