After a week of relative rest following her battle with Tirek, Twilight, with the help of her friends, has made headway into making the Castle of Friendship her new home and the new library for Magiville, when she received a call for help from ... Sunset Shimmer as she tries to make amends for her past and is currently at Midnight Castle, assisting the Shadowbolts find Angus McSteer, the only member of Longhorn's gang to escape justice, while also show she is not who she was.

Meanwhile foes from the earliest days of Mystica, before Celestia and Luna ascended to their thrones, having completed their stellar exile, at the hand of Star Swirl the Great, have returned and have their sights on Mystica, but first, a launch point in needed and Midnight Castle seems just the place.

Can Twilight and the Rainbooms best these 'Dazzlings'?
Will Sunset forever be pledged by her past?
Or will the world be held to the Sirens' song?

Contains Season 7 Finale spoilers, you have been warned

No actual sex, but some ... suggestive content of a ... sensual nature

This My Little Mages AU's take on Rainbow Rocks, build off of 'My Little Mages: The Lost Student'