To summarize what the AU is about, basically different events occur that cause certain events and characters to go and act differently than we know them. In this version of Equestria, it is ruled by the Pillars of Equestria (Starswirl, Mistmane, Rockhoof, Somnambula, Flash Magnus, And Mage Meadowbrook) who are cursed to be immortal.
 
(In this AU, the state of the Changelings are swapped, with the reform Changelings being the standard and vise versa for the original Changelings.)
 
King Thorax is the ruler of the Changeling Kingdom, watching over his people with kindness and love. Though he acts friendly and kind, he can put his hoof down when needed in any dire situation. He has close ties to the Pillars of Equestria and respects their way of ruling Equestria.