User blog comment:Invisiblewing/HTTYD Fanfiction/Retelling: Part 7/@comment-12598077-20130718141204

Just curious...obviously, sooner or later, you have to include the part where Astrid finds out about Toothless and goes flying with Hiccup; how are you going to explain Toothless being able to misbehave in the air without the whole flying system he has with Hiccup falling apart? At the very least, Hiccup needs to wonder how his buddy's doing that.

They never did explain that in the movie... ^_^