Chronicles the adventures and misadventures of Hiccup Horrendous Haddock the Third as he tries to pass the important initiation test of his Viking clan, the Tribe of the Hairy Hooligans, by catching and training a dragon.

"The Doomsday of Yule has arrived, and the future of dragonkind lies in the hands of one boy with nothing to show, but everything to fight for. Hiccup's quest is clear... But can he end the rebellion? Can he prove himself to be king? Can he save the dragons? The stakes have never been higher, as the very fate of the Viking world hangs in the balance!" --

"A dragon rebellion is coming-filled with the meanest, nastiest dragons in the Archipelago. Razor-wings, Tongue twisters, and Vampire Ghouldeaths are attaching Vikings and seem to be seeking one soul in particular: Hiccup Horrendous Haddock the Third! Only a King can save them...and only a champion with all of the King's Lost Things can be King. In his adventures, Hiccup has collected quite a few "things" himself. But can a scrawny Viking save the...

Someone has stolen the Fire Egg. Now the volcano on Volcano Island is active and the tremors are hatching the eggs of the exterminator dragons! Can Hiccup return the Fire Egg to the volcano, stop the volcano from erupting, and save the Tribes from being wiped out by the terrible sword-claws of the Exterminators.

Follows the further adventures and misadventures of Hiccup Horrendous Haddock the Third as his Viking training continues and his father leads a stranger and the Hairy Hooligans to the Isle of Skullions in search of a pirate's treasure.

Stranded on the exceptionally dangerous, and possibly haunted, Beach of the Broken Heart, Hiccup must face UG the Uglithug and complete the impossible task — or die trying. Along the way, he'll have to battle Berserks, dodge Scarers, and save Fishlegs from being fed to the Beast, all while being hunted down by an old enemy with a dark secret about the mysterious Lost Throne. With Toothless by his side, and time to stage his rescue running out,...

Hiccup must find a way to show the Vikings of Berk how helpful the dragons can be.

"As the chief of New Berk, Hiccup is faced with his biggest challenge yet: A ruthless dragon hunter named Grimmel will stop at nothing to capture Toothless. While Hiccup tries to decide if it's time to leave Berk for good to keep the dragons and villagers safe, Toothless has something (or someone) else on this mind. As soon as he meets the Light Fury, a dragon with glimmering white scales and amazing abilities, she is never far from his thoughts"--Flyleaf....

While the vikings are away looking for dragons, the teens stay behind to attend dragon school. One of the young vikings, Hiccup, invents a weapon called the mangler, which he uses to knock a dragon out of the sky. However, when he goes to investigate, he finds the creature has been wounded by his weapon and instead of killing it, he befriends it.

The Vikings of Berk have been battling fire-breathing, sheep-stealing dragons for generations, and Gobber has trained every Viking on Berk in the art of fighting these dragons. Now he's ready to share his secrets with you! Find out where a dragon's blind spot is and what to do if you're face-to-face with a dragon that can shoot a ball of fire. Pay close attention and you can become a dragon-fighting Viking, too!