Httyd: Heart of a Viking, Soul of a Dragon

Y/n Haddock, Hiccup's twin sister. Y/n always had something different about her. She was an excellent cook and had great fighting skills. But she could never bring her self to kill a dragon. She doesn't know why and Hiccup felt the same. They both couldn't kill a dragon. You see when they were younger the night their mother was taken Lexi got scratched by a dying Night Fury. But what happens when she figured out that this scratch will change her life forever. What will happen when she and Hiccup shoot down two the most dangerous dragons.