Lyle likes to knit hat covers. But what Viking needs a hat cover when he already has a hat? The Vikings Lyle sails with are nice Vikings, but they still laugh when he knits. It takes a lesson from some stinky Vikings for them to realize how valuable Lyle's hat covers really are.

"Vikings were fierce warriors who sailed the seas looking for new lands. They were expert sailors and shipbuilders. Find out the science behind their explorations, shipbuilding, and daily life. Discover how modern technology is being used to discover more about the lives of Vikings and their expeditions"--

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.

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?

When his cousin is captured by the king of the dragons, Geronimo must deliver the Crown of the Seven Rubies to free him.

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.

Their magic tree house takes Jack and Annie back to a monastery in medieval Ireland, where they try to retrieve a lost book while being menaced by Viking raiders.

In 854, the bold fourteen-year-old daughter of a Viking chieftain, aided by her old and thin but equally intrepid horse and an ancient, one-eyed seer, must find a way to keep her clan together and save them from starvation.

The Danes of East Anglia and the Vikings of Northumbria are plotting the conquest of all Britain. When King Alfred's daughter pleads with Uhtred for help, he cannot refuse her request. In a desperate gamble, he takes command of a demoralized Mercian army, leading them in an unforgettable battle on a blood-soaked field beside the Thames.

"It's a happy time in Berk--the Vikings are getting ready to celebrate their favorite winter holiday: Snoggletog! And now that the Vikings and dragons are no longer at war, it should be an even bigger celebration. But there's just one problem: all the dragons have left Berk--even Toothless! Where did they all go, and are they ever coming back? Find out where the dragons disappeared to as they plan a special celebration of their own"--P. [4] of cover....