With Discord still on the long track towards reformation, he decides to poke a little fun on Canterlot and, more importantly, Celestia. His little spell goes out of control quickly, and Canterlot becomes swallowed in a heavy thunderstorm, which forces the princess to use many different counter-measures to ensure of the castle's safety.
A short comedy fic inspired by a short scene in another story of mine.
It is NOT a sequel-- neither story's plotlines are related to one another in the slightest.
Image for cover art by ZuTheSkunk