When Hiccup and Toothless discover an 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.
Prepare for high-flying adventures with Hiccup, Toothless and the rest of the Dragon Trainers. Meet new dragons, learn the secrets of the legendary Boneknapper and see what is in store for the holidays on the festive island of Berk.
With Dracula's grandson Dennis now fully a vampire, things couldn't be better at the hotel! But when a greedy billionaire threatens to destroy the hotel and replace it with his own island ... See full summary »