A beautifully designed hardcover volume featuring exclusive commentary and never-before-seen art from the creation of the animated motion picture masterpiece! Don your winged Flight Suit, grab your Dragon Blade, hop on your obedient Night Fury, and get ready for the ride of a lifetime with your favorite dragons and Vikings in the latest installment in the How to Train Your Dragon trilogy! Fans will delight in the discovery of previously unknown dragons, the threat of a heartless villain, and the quest for sanctuary that propels the story to extraordinary new heights (and depths!). Venture into the Hidden World where dragons roam free under the watchful eye of their leader Toothless as, above ground, Hiccup struggles to assume leadership of his tribe.