Rogue- A HTTYD Fanfiction [REWRITING]

*currently under some revision because... I don't know what I was doing. It's still readable and nothing huge is changing, so don't let that stop you from reading if you don't want to!* **Currently #7 in the HTTYD tag! Thank you so much! Like, HOW?!** "What if Hiccup WASN'T forgiven for training a dragon?" Disowned an...