Hiccup is a Viking teenager who aspires to hunt dragons, but doesn't exactly fit in with his tribe's longstanding tradition of heroic dragon slayers. His world gets turned upside down when he encounters a dragon that challenges him and his fellow Vikings to see the world from an entirely different point of view.

While Astrid, Snotlout and the rest of the gang are challenging each other to dragon races, Hiccup and Toothless journey through the skies, charting unmapped territories and exploring new worlds. When one of their adventures leads to the discovery of a secret ice cave that is home to hundreds of new wild dragons and the mysterious Dragon Rider, the two friends find themselves at the center of a battle to protect the peace.

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.

"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....

"A dragon rebellion is coming-filled with the meanest, nastiest dragons in the Archipelago. Razor-wings, Tongue twisters, and Vampire Ghoul deaths 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...

In exile, and hunted by dragons and humans alike, can Hiccup the Viking find the dragon's jewel and save the world from destruction?

It's Hiccup's birthday, but he must save his dragon, Toothless, from being banished. He sneaks into the Meathead Public Library to steal the Vikings' sacred book, but must brave the Hairy Scary Librarian, the army of Meathead Warriors, and the Driller Dragons.

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.

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.

Hiccup, Gobber, and the Viking kids are back to battle a mysterious dragon that no Viking has ever seen.