All of Twilight Sparkle's friends have disappeared while five new mares all named Twilight Sparkle appear in town, each having a different special talent, and each claiming to be the true Twilight Sparkle.
One morning while raising the sun and lowering the moon, the princesses sense a disturbance that leaves them unsettled. On the same day, a traveler arrives in Ponyville.
Possessed by a question, Twilight sets out to have it answered. Of course, she will have to violate a huge pony taboo to do so. But hay, it's for science!
Discord's back in Ponyville after a long vacation. Caught between his desire for chaos and wanting to keep his few friends, can Discord sate his desire for mischief in a way that doesn't warrant punishment? Duh, look at the title.
Name's Zack. After apparently having vanished 3000 years ago, I returned to Equestria, only this time I'm actually in the same time period as the Element Bearers. I just hope Tia isn't upset that I disappeared...