In an effort to keep her mind occupied, Twilight Sparkle decides to delve once again into the grand mysteries of Pinkie Pie. This time, Twilight's focus is on her claims of growing up on a rock farm: like so many things related to Pinkie Pie, the idea that somepony could grow rocks as an agricultural product makes absolutely no sense. However, the investigation eventually leads Twilight to a rather... surprising discovery.
This is the first story in The Petriculture Cycle.
Artwork by Page Turner. Now with a TV Tropes page.
Twilight tries to figure out how rock farming works.
When Twilight is taken by the Nightmare, it's up to Pinkie Pie to rescue her.
Penumbra seeks gainful employment.
Trixie returns to Ponyville to challenge Twilight Sparkle. ("Magic Duel" as it occurs in the Petriculture AU.)
Celestia decides to attempt to reform Discord, so she taps a pony with a similar background for the job. ("Keep Calm and Flutter On" as it occurs in the Petriculture AU.)