Over the years, Equestria has faced many threats of all shapes and sizes. Perhaps it is unsurprising, then, that Princess Celestia would eventually reach the end of her rope and become one herself. If she is not stopped, it could mean the end of Equestria as we know it.
Thankfully, Twilight Sparkle has a plan.
Less thankfully, she didn't have much time to think about it.
Story takes place in Season 3-ish.
Cover art by the incredibly talented Butterscotch!