Auctorsys

The Auctorsys (this term is both singular and plural) are huge, whispy energy/gaseous beings that eternally exist at the edge of existence. They cannot live where anything exists, so they must keep moving outwards from the Universe. However, as they live they convert their massive energy body into matter wherever they go and form this matter into physical creations, meaning that they expand the Universe constantly.

One of the Auctorsys, met by a traveler seeking the edge of the Universe, looks like an extremely thin being with body features of exaggerated length and a head vaguely resembling a bird's head with empty eye sockets, all formed out of what appears to be slightly illuminated transparent grey gas. It spoke in a silent voice.