Unforseenplottwist Stories

(English is not my mother language, so please, if there will be any mistake, tell me kindly, so I can fix it, thank you) No one knew, what exactly happened to King Sombra and Chrysalis, when they were defeated by Princess Twilight and her best friends. Well I know... kinda. From my sister and Brother. Kids of those two. No one knows how and why, but we assume they wanted to have a continuing for their idyllics. To rule over the world. Yet it happened I am truly against them and now I have to find a way how to kill them before they get out of the place they hide in. And prove that the death of my sister was not unnecessary.