Hiccup and Toothless: Mystery of the Fury

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After Hiccup and Toothless became a chief and an alpha, peace was established on Berk, the complete peace between dragons and humans. They started researches on dragons, as they were the friends of humans now, and of course everyone needs to know their friends to be able to protect them, they should know their strengths and weaknesses, and, of course, their past...

The main researcher of dragons was Fishlegs, one of Hiccup's best friends. He, in time of Hiccup Haddock's great adventures, had discovered a lot of new things about dragons, and had solved many mysteries, such as a mystery of the Wisdom Fire species, the owner of which was now their friend.

But now, we're going to tell you about Hiccup's and Toothless's the most unusual adventure, of how they solved the greatest mystery of dragons...