How to betray a dragons hero is the eleventh book in the how to train your dragon book seriesit was first released on september 26 2013. How to train your dragon how to betray a dragons hero cressida cowell on amazoncom free shipping on qualifying offers in hiccup the vikings misadventures the stakes have never been higher and its friend versus foe to decide the fate of the world a heros guide to deadly dragons how to train your dragon book 6 cressida . The story how to betray a dragons hero by cressida cowell is the story in which on of the antagonists snotlouts true feelings come out he not only betrays both the villains and the heros but he has lost his whole family friends and life. How to betray a dragons hera 4 the train the dragon series began as very humorous young reader fiction with lots of strange drawings and the usual villains and heroes that includes the dragons