The Crimson Rose

Xaylah Maron thinks she's having another normal day with her annoying brother, Alexander but what happens when Alexander and Xaylah are kidnaped by different rebel groups who both think the opposing group is planning to poison the next manditory flue shot and are collecting twins to keep them safe because they seem to believe that their DNA might be the cure, but what happens when the villain is the last person they expected? this is my first book, so go easy on me!