twilight goofed.it starts out kind of like the magical mystery sure but then turns down a different path. story is different, but better.
you still get twilight and celestia but no one else really. this is a dark story so only teens can read it is my warning that you not read if you are a fan of twilight.

twilight hears a knock at the door. she opens it and there is a book on the ground that has a note from celestia. it says it is star-swirl the bearded's uncompleted masterpiece. she flips to the back and reads it. she then goes to sleep.

to find out what is different you have to read the story.