In the fifth adventure in the How to Train Your Dragon series, someone has stolen the Fire-Stone. Now the volcano on Volcano Island has become active and the tremors are hatching the eggs of the Exterminator dragons! Can Hiccup return the Fire-Stone to the Volcano, stop the Volcano from erupting, and save the Tribes from being wiped out by the terrible sword-claws of the Exterminators?

It's Hiccup's birthday, but that's not going to keep him from getting into trouble. To save his dragon, Toothless, from being banished, Hiccup must sneak into the Meathead Public Library and steal the Viking's most sacred book. But the Vikings see books as a dangerous influence, and keep them locked up and under heavy guard. To save his friend, Hiccup must brave the Hairy Scary Librarian and his dreadful army of Meathead Warriors and face off against the formidable Driller-Dragons.

Hiccup Horrendous Haddock III, everyone's favorite reluctant Viking hero, has three months, five days and six hours to discover America, get back to Berk, save his father, battle Polarserpents, and win the annual Inter-Tribal Friendly Swimming Race. Can he do it?

The rollicking sequel to How to Train Your Dragon and How to Be a Pirate offers a fast-paced plot, slapstick humor, witty dialogue, to enhance an exciting tale featuring Hiccup Horrendous Haddock III.

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, what's a Hero to do?

The Dragon Rebellion has begun, bringing the Vikings' darkest hour upon them. Hiccup has become an outcast, but that won't stop him from going on the most harrowing and important quest of his life. He must find the Dragon's Jewel in order to save his people...but where should he begin?

Book 12 is the epic finale to the New York Times best-selling How to Train Your Dragon series! 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!

In Hiccup the Viking's misadventures, the stakes have never been higher, and it's friend versus foe to decide the fate of the world. In this, the penultimate title in the amazing story arc that began with How to Train Your Dragon, Hiccup is faced with a personal dilemma against the backdrop of an impending battle and the possible destruction of everything he knows.

Follow the further adventures and misadventures of Hiccup Horrendous Haddock III 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.

Chronicles the adventures and misadventures of Hiccup Horrendous Haddock III 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.

Once there were Wizards, who were Magic, and Warriors, who were not. But Xar, son of the King of Wizards, can't cast a single spell. And Wish, daughter of the Warrior Queen, has a banned magical object of her own. When they collide in the wildwood, on the trail of a deadly witch, it's the start of a grand adventure that just might change the fabric of their worlds.

Xar and Wish are heroes with a huge task ahead - confronting the Nuckalavee is not for the faint hearted. But with Magic and Iron together, they might just have a chance of saving their beloved homes from those who seek to destroy everything they hold dear. Beloved, best-selling author Cressida Cowell once again brings her trademark wit and stunning combination of action, adventure, humor, and incredible artwork to this epic new adventure, sure to transport and enchant listeners. Knock Three Times immerses you in a world you won't ever wish to leave. 

It's the first winter after the Monster Apocalypse. For Jack and his buddies, that means sled catapults, epic snowball battles, and one monstrous Christmas celebration. But their winter wonderland turns dark when a villainess begins hunting them. And this villainess is different - she’s a human. When the villainess steals Jack's prized monster-slaying tool, the Louisville Slicer, he vows to get it back. But it won’t be easy. Jack and his friends soon discover that the Louisville Slicer is the key to a dark plan that threatens the entire world - and beyond.

The Aldens have joined Dr. Iris Perez as she investigates legendary creatures around the world. In this adventure, the children travel to Iceland to look into stories of mischievous elves causing trouble. The legends of huldufolk, or hidden people, go back a long way in the country, but are elves really the cause of the problems, or is there a more natural explanation for the strange events on the island?​

The Aldens are visiting a small town known for its fall festival, and while Grandfather is off taking in the fall colors, the children try out the town's newest attraction - a Halloween escape room! The Aldens love solving the puzzles to get out of the room, and they don't mind the spooky theme. The problem is, someone - or something - is making things downright scary for other customers!