When the CMC and Twist become the new Princesses of Equestria there is a lot for them to learn and adapt to. Especially when a cruel and jealous evil stalks in the wings

Avatar LOK crossover. Korra vanishes after returning Lin's bending and is replaced by a pony named Quaker.

An old pegasus teaches his grandfoals how the smallest anctions have the biggest impact

The entire Crystal Empire has finally reappeared and life is good for the young princess Dawning Song. The empire isn't the only thing to reappear however as a group of ancient Diamond Dogs aim to finish what they started a millennia ago.

Twilight didn't think so either. That was a mistake