Animus Hosts a Summit in Valhalla with Odin and Eon

Animus, Odin and Eon are characters from my novel, 'NAUNET: The Labours of Animus'. After being transported across the cosmos from the gates of Khematia in Midgard through the Bifröst by Æthereona, the Eternal All-Mother, to meet with Odin, Animus arrives in Valhalla. After bursting through Odin's front door, as is his greeting custom with his old friend, Animus is surprised by the chance encounter to find the Realmking and Creator of their Omniverse, the Eternal Elu Eon Himself, being hosted by Odin. Animus wastes no time in asking Odin about the singular greatest looming threat to all of existential reality, to Eternals, Ephemeral deities, and mortals alike. The meta-cosmic existential eshcaton that lead to the very creation of Eternity itself and ephemeral life, be it divine or mortal, also foretold to likewise usher the end to it all, has reimbedded itself in the meta-cognitive collective minds of all gods and Eternals alike, for which Animus has been deployed by the Eternal All-Mother to seek and gain answers from arguably the wisest most knowledgable being within the ephemeral existential realm within Eternity, being none other than Odin Alfadir himself. Eon is eager to know what urgency could compel His own Mother, the All-Mother of Eternity itself, to send Animus to seek Odin's immediate counsel at the same time as his once-an-aeon visits to the seemingly All-Knowing Omniscient All-Father, the possessor of one of the most dreaded and coveted powers in Eternity, the All-Seeing Eye. And the question Æthereona has sent this boy to ask of Odin is....

Who is Eternus?