Reluctant hero Hiccup Horrendous Haddock III must rescue his best friend, Fishlegs, from the deadly disease Vorpentitis. The only cure is rare and almost impossible to find ... a potato. But where will Hiccup find such a thing?

Hiccup, the reluctant Viking hero, has three months, five days, and six hours to discover America, return to Berk, save his father, battle Polarserpents, and win the annual Inter-Tribal Friendly Swimming Race.

Someone has stolen the fire stone, so eggs of exterminator dragons are hatching. Hiccup must return the fire stone to the volcano to save the Tribes from being wiped out.

Hiccup, stranded with Toothless on the Beach of the Broken Heart and being hunted by an old enemy, faces Ug the Uglithug, Berserks, and Scarers and tries to save Fishlegs from the Beast.

"Hiccup is in hiding in the Murderous Mountains with the Company of the Dragonmark, but he is determined to become King of the Wilderwest by defeating the witch's Vampire Spydragons and steal back the King's Things from Alvin the Treacherous"--publisher.

Vikings are brave. But Hiccup isn't like other Vikings. He's afraid of everything... including the sea. When Hiccup heads off for his very first ocean voyage, his seasickness is the least of his worries! The Vikings are lost in a terrible storm, and it's up to Hiccup to help them find their way home again. Featuring the beloved main character from the celebrated How to Train Your Dragon series, here's an exciting adventure that shows what it really...

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

"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!"--publisher.