And also about the Dragons declaring war at the human even their masters. Hiccup the hero of the series is about to be the new king of the Wilderwest when one of the important Vikings in the story knocks Hiccup's helmet.
And everyone sees that he has the slavemark and a king in the story if you have the slavemark you cannot be king. His dad Stoick the Vast gets to be chosen second but cannot be king because he also is a slave and finally the bad person, Alvin treacherous, gets to be king and he says that they should kill the dragons.
