How to Train Your Dragon-1
How to Train Your Dragon is the viking age, but with dragons! On a world like Earth, but not Earth, the mythical beasts known as dragons crisscross the skies, swim through the oceans, and even burrow through the ground. Hosting a thriving population of animals and scattered bands of humans, a few humans have learned to live with the dragons, bonding with them closely, riding them as mounts, and using them, not as tools or beasts of burden, but as companions.
In this world two groups vie for power. Draco Bludvist seeks to conquer the world with his dragon army, while the Dragonriders of Berk seek peace between human and dragon. For now there is a truce between the two factions -- mostly due to the apparent death of Draco -- but whether the truce holds when a new warlord seeks power remains to be seen.