The Mane 6 switch places with plastic versions of themselves - AKA the figurines we collect - causing them to be only an inch or two tall. They must rely on Greg until Celestia comes to get them - however long that might take.
My first fanfic published, enjoy!
I do not own My Little Pony: Friendship is Magic or any of its characters. If I do in the future, disregard this, as my plan to take over Hasbro (which I certainly do not have, Hasbro, forget you read this) has worked. I also do not own the cover image, all credit goes to it's author, StardustXIII. Here's a link to the original posting of it: http://stardustxiii.deviantart.com/art/Gimme-some-284469748