Set after rainbow rocks and Twilight's Kingdom, The Dazzlings regain their power slip through the portal from Human world to Equestria and try to take over with their renewed siren powers, only to once again be defeated by Twilight Sparkle, Sunset Shimmer and friends. realizing her mistake in letting them go like last time Twilight decides to banish them to another world, like Starswirl the Bearded did all those years ago, however this time Twilight will not be so merciful.
Trapped in their human world forms and Imprisoned in alternate universe Tartaurus the three sirens learn they had squandered their second chance at a new better life, instead living a whole new hellish one.

now for personal author reasons the sirens still have their human forms (as seen in rainbow rocks) even after being thrown back into Equestria and the guards/wardens of Tartarus look kinda like Sunset Shimmer's "raging she demon" form (Sunset Satan) from the first Equestria girls movie.
This Tartarus is also a much more macabre than the equestria equivalent.

That in mind, why did i write this?

I am a Sadist with a fascination with medieval style torture and execution methods, and also i wanted to see the dazzlings go through hell.
Seeing as noone here has written one, to my knowledge i will write my own.

WARNING, brutal bondage, real torture (no lite stuff like tickling, spanking etc) gore, execution, rape, macabre, equestria girls and OC's.

This is a work of fan-fiction and is in no way meant to infringe on copyright on hasbro's equestria girls, or ruin anyone elses headcanon just my own personal fic