Fanfic: The Lady of the Loch

The Lady of the Loch is a fanfic made by Dinosaur Barbecue, a post-How to Train Your Dragon and Brave AU.

Hiccup has never believed in magic, but when he's enlisted in a fierce princess's attempt to change her fate, they both must fight against forces darker then they'd ever imagined.

There are 12 chapters, and it has a sequel here.