The Second Age

The Third Age began with the boredom of Phlotus with the worlds he had created. Wanting to find something new he left his creation and it was left in darkness under the control of Myrkul. As the only god of The Original Three to care about what happens to the mortals, Savras went after him and asked him not to abandon his creations, or to at least give them a way to live through the darkness. He snapped Sirrion into existence and instructed him to give the mortals fire to wade through the darkness left by Myrkul.
Sirrion and Savras returned and Sirrion created a massive ball of fire in the sky to grant light to all of the planes in one simple way. Upset at being foiled by a lesser god, and fooled by Phlotus, Myrkul removed three fingers from his left hand to watch over the planes as he left in a cosmic search for Phlotus. From his index finger Chemosh Kelemvor arose, the middle finger, Lozitar, and from the ring finger sprung Shara Takhisis. The three working together to maintain the kingdom left behind by their father. Their jealousy and rage fell on their elder brother Tempus who has been crowned the King of the Dead in the absence of Myrkul.
Upon seeing the ball of fire in the sky, Eldath Rao fell in love and the two created life in the form of Aureon Celestian. Noticing that the ball of fire that he was created from was unstable. Aureon found a strong oak tree to sit under and began meditating to stabilize the entity.