the beauty and the night fury

This story is after the first movie but around the base of the second movie. Hiccup asks Astrid out on a date but never picks her up. Astrid finds him in an alleyway but something has happened to him, he's a night fury but he's also human. A witch that goes by the name of Luna midnight is responsible for this. find out how Astrid will stop hiccup from becoming Luna's servant...