Queen Chrysalis is dying. Never fully recovered from the failed attack on Canterlot, the once proud Queen finds herself weaker than ever before. With no son or daughter heir, Queen Chrysalis is forced to invoke the old laws, and name one of the last enemies to defeat her as the new Queen. As Twilight Sparkle, Element of Magic, prepares to participate in the Unity Chalice, she finds her life turned up-side down as changelings kidnap her and bring her before the old Queen. With no choice but to make one last promise, Queen Twilight Sparkle sets out to make peace between the Changeling Horde and the races of Sol. Little does she know, things wont be that easy.