*****
This story mostly follows the tv show timeline, but with some AU to it. Except for the prologue the story takes place just after Keep Calm and Flutter On and ends before Magical Mystery Cure.

An old foe, defeated and forgotten by Equestria's citizens returns and uses a mare of unique lineage to bring about it's revenge. As a counter the royal sisters give an old enemy turned friend his first assignment in hopes to keep the Element bearers out of the mare's way. Will he succeed in changing her or will the Elements have to be called upon? Can they even stop her and her Master, or will Equestria fall?