Two hundred years ago, Equestria was under the grips of a great plague, one that, in the end, will claim five sixths of the entire pony species.
Celestia tried everything to save her children. She purified entire lakes, turned infertile ground fertile, but when it comes to medical magic, all she can do is mend bones.
After losing a close family member, she turns to the dreaded dark magic found in Tarmogoyf and enchants a new born named Pac Agate.
Four years later, Pac saved the pony race from extinction, but there were consequences for her. Ones that trail through her linage and cripple her children.
Now, with Crystal Agate, the last child in the Agate linage must learn who she is and why she was placed on this planet.