This second standalone graphic novel based on the film series is a new
adventure that takes place shortly after the events in How to Train
Your Dragon 2, during the period in which Hiccup is desperately trying
to fill his father's role as the chief of Berk. Created with the help of
the film's writer, director, and producer, Dean DeBlois, it bridges the
gap between the second and third films.
Hiccup, Toothless, and the rest of the dragon riders encounter two
deadly yet mysteriously linked threats: One is an island consumed by
Dragonvine, an uncontrollable force of nature that's poisonous to humans
and deadly to dragons. The other is an all-new, all-terrifying dragon
species--the web-spitting Silkspanners!