It all starts at the episode of auction heroes. Cause, what if something went wrong? What if Viggo had a younger sister who happened to be friends with dragons. And what if the only dragons she had no information on was a night fury. So what if Toothless was never even in the program of getting sold at his auction but something else happened.... >-~-~-~-< 'Dear diary, today was a strange day. Do you remember that bet I made with my brother? Well, I won, duh. Viggo wins with mazes and talons but I win with bets. I could choose one dragon of his auction. You should have seen his face when I picked a night fury. I can't wait to study the dragon. But something seems off, it's almost like he misses someone. - Thyra Grimborn

What if Hiccup had a twin sister he thought was long gone with his mother? When in reality they were both taken by dragons not to be killed by them but to live with them. Y/N has grown up living with dragons for 20 years with her mother and together they help defend and save dragons from dragon trappers. Her mother told her how her brother and father were still alive but that they lived in a place where dragons were hated and feared. As much as she wanted to meet the rest of her family she couldn't live in a place where dragons were killed. But what will happen when one day her mother brings home a random boy back to the dragon's nest that has his own night fury? This story belongs to DreamWorks and so do the characters besides Sandstorm and Y/N.

Basically how the movie hidden world plays out but instead of the Light Fury, its you but as a Night Fury like Toothless, she also felt like the last of her kind. you found a friend before a human attacked your kind. she was a Light Fury. when the human attacked you and the Light Fury were playing like most dragons your age did (your the same age as Toothless). that was when you heard the roar of your kind. you two flew back only to see flames, humans using dragons, and your kind on the ground. one human saw you and brought up a bow. your friend roared as she blasted the arrow he shot. she nudged you for us to leave. by the time he loaded another arrow we were already gone. since then, i've been the last of my kind, the Night Furies. that is, until now I do not own HTTYD or any of its characters or you either