@Background Pony #58B7
700 years ago, a group of ponies were involved in dark experiments, injecting liquified enchantments into young fillies and colts.
Celestia found out, busted the ponies, and removed the enchantments from all but one of them. The filly who still had enchantments had managed to escape and began to live in a desolate town.
700 years later, the filly, who was named Spark Seeker, was finally found.