(Part of RainbowDoubleDash's Lunaverse as a side story) A cult of Zebras, led by Zecora, attempt to secretly give Corona more power than the Elements of Harmony with energy summoned straight from the sun at Noon. However, Corona finds out, and interrupts the spell (out of pride,) and no pony knows what will happen when a spell is interrupted.
So what happens when Trixie finds a filly out in the woods, bearing a striking resemblance to Corona?
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Big thanks to Pen Stroke for letting me use the general idea of Past Sins for this story, as well as RainbowDoubleDash for their support!