Twilight accidentally opens a portal that sucks Fluttershy inside and closes on her while she's calling for help. A year later the princesses bring the rest of the elements together for remembrance and something interesting happens.

Explosions are expected from me
If at all that a story is similar to this then i am sorry and did not know. if you leave me a message then i will either take this down or ask the writer if it is alright if i use this story