1000 years ago after Nightmare Moons banishment, a Thestral comes to Canterlot seeking redemption for his crimes against the Crown. 1000 years later this Thestral turned Royal Night guard comes to Ponyville to serve Princess Twilight Sparkle. but unknown to Equestria is an old foe thought destroyed has been regaining His power and Plans on using the Thestral as a means to conquer. the Thestral will soon have to Choose: become the herald of Darkness or become the Dark Savior of the Sun?