after dagur and heather went to search for their father leaving the dragon riders (Astrid, hiccup, fishlegs, snoutlout and the twins ruffnut and tuffnut) there went some years and dagur returned back to the edge With heather and you, his daughter (your 7 years old) you guys land on the edge, your flying with your dad dagur on his gronckle shatter master, and heather on her razor whip and the dragon riders see dagur and heather but at first they don't see you