The Night Fury Soul Series Book 1

This story starts right after the 300 war was finished between dragons vs Vikings. An outcast, known as Hiccup Haddock the 3rd and his pal Toothless destroy the Green Death. Hiccup has been having a few moments where it seems he can understand the dragons in their language and has him wondering why. Can Hiccup find out how to manage the future with what he learns about himself?