The Kids are Watching

After just another seemingly ordinary day for the Haddocks, when, as usuall, nothing seems to follow according to plan. A mysterious stranger appears after a simple request by the children. They suddenly find themselves in a strange world. Where is this place? Who or what is this Stranger? And why does it seem sort-of-maybe-perhaps familliar to Hiccup? First Fanfic, ever,be nice...