Before we start......

Hiccup has the perfect life. Well his past isn't perfect but at least he loves what he have now. He has a family, friends, a dragon and a girlfriend. Not any girl in the world his girlfriend is Astrid Hofferson. One of Berks most beautiful girls. Ha also has a theme The Dragonriders

But what happen when a enemy shows up?
Hiccup loses his memory and a new girl arrives to Berk. How can Astrid bring him back.

Yes I know that this seems more like a Hiccstrid story but it's both.