The whole school saw Sunset Shimmer's demonic form get hit by the Elements of Harmony, and half a second later she was in a smoking crater in the ground, sobbing and repentant. From Sunset's perspective, her change of heart took a bit more time.
Genre is... not well-suited but to be perfectly honest that's the closest it's gonna get. Think of it as a missing scene.
Art is by Rennygade, though for some reason I can't find this specific piece on their page. Please contact me if you object to my using it here; it's a beautiful piece.
Many thanks to the folks on the Fimfiction and Clocktower Discord servers for their editing help; any remaining errors are my own.
Cross-posted to AO3 finally here.
Featured at the Royal Canterlot Library!