Alternate Universe (Dashverse): A continuation of "Rainbooms and Royalty" Ponyville goes to sleep one night only to find in the morning that every foal in town is gone! The ancient evil King Sombra has returned and stolen foals from all over Equestria. But why? What is his true purpose in stealing them? It's up to Rainbow Dash and her friends to rescue the foals and stop this evil once and for all. But it's a long journey and complications arise with the ponies that join them. How can they save Equestria and preserve harmony when there is disharmony among their own ranks?
Alternate Universe: Filly Rainbow Dash has just performed her Sonic Rainboom when she gets a visitor
AU Dashverse: The Crystal Empire has returned and the foals of Equestria have gone missing!
AU: A retelling of "Sonic Rainboom" episode, set in Dashverse (A universe where Rainbow Dash became Princess Celestia's student. A follow up to "Rainbooms and Royalty")
Dashverse AU: The Canterlot Wedding is on and a changeling scheme to subvert the Elements of Harmony is underway! Can Rainbow Dash find the imposter?