While on visit to the Crystal Empire Princess Luna and Princess Cadence notice a strange energy disturbance and decide to investigate. The energy reading is none other than a changeling, found barely clinging to life. Princess Luna goes against Princess Cadence's wishes and lends power to revive it and it works, only problem is, it wont stop calling her queen and it wont let any of her guards near. Why is this happening, and who is the changeling? Only time will tell the answers.