An invasion of Pinkie Pie doppelgängers threatens all of Ponyville. But Twilight is confident that she has a great plan to deal with the problem. What could go wrong?

The original fanfic by me is posted on Russian-language resources:
https://ficbook.net/readfic/018cb4b5-4574-7a19-a6bc-c1406113c569
https://ponyfiction.org/story/17537/
Translation into English was done by:
https://www.fimfiction.net/user/535037/oranzinispegasas