The Slingers: Equestria's silent protectors. Nearly 200 years after their founding by Twilight Sparkle, the Slingers face a threat like never before. Twilight Shimmer, Twilight Sparkle's descendant, is one of the greatest magic users Equestria has ever known, and perhaps the greatest Slinger of all time.
Brightly Lulamoon is an orphan with incredible magical aptitude. When he is apprenticed to Twilight Shimmer, he gets a chance for greatness. But what will it cost him? Equestria's future hinges on the choices of this young unicorn.
(A/N) Thanks to Garbo802 and Sorren for pre-reading.