Berk's Winter Spirit

Jack Frost is sent on his first mission since becoming a Guardian. He's sent to Berk, an Island where Vikings and dragons live together. He learns quickly that nobody can see him, except the Chief. He also learns that something dark is terrorizing the land, and he knows he has to protect them.

Chief Hiccup is struggling to handle his new responsibilities since his father's passing. He runs away from most of the problems and lets Astrid handle all of the issues. Ever curious and constantly exploring, searching for the greatest wonders of the world. He meets Jack, the winter spirit, and is quickly enthralled.

Since only Hiccup and Toothless can see Jack, they spend a lot of time together. It leaves Astrid suspicious and lonely, but when she asks, what can Hiccup say?

This is NOT the finished description; I will change it later when I have more of the story finished.