Rainbow has recently learned the value of a good cry, and thinks there is another pony in need of similar release. Knowing a softer touch is needed she enlists Twilight to help. Part Mother's Day, part Tanks for the Memories inspired.
After an experiment blows up in Twilight's face, thanks to Pinkie Pie, Spike decides he's had enough. In his anger a trans-dimensional gateway is accidentally opened hurling them, and perhaps many more, into a new world unlike their own.
*Undergone substantial revision.* History is written by the victor. What if the last battle between Princess Celestia and Nightmare Moon wasn't quite as clean cut as the history books tell?