You might see characters from both universes teaming up to face common enemies or going on adventures together. Maybe there'll be power-sharing and training scenes too.
You might expect adventures where the characters from both worlds join forces to face a common enemy. Maybe there could be magical elements from Eragon combined with the dragon-training techniques from How to Train Your Dragon.
Well, you might find stories that focus on the emotional bonds between the humans and the creatures, or perhaps tales of mystery and discovery in the How to Train Your Human world.
Well, there could be scenarios where the powers and skills of Percy Jackson characters combine with the dragon-riding abilities from How to Train Your Dragon. Maybe they have to save a merged world from a powerful evil force that combines elements from both franchises.
It could be an adventure-filled story where Hiccup has unique insights and reactions to the movie.
You might find all sorts of fanfiction - adventure stories where Hiccup faces new challenges, or maybe romantic ones exploring his relationships.
You can find all sorts of storylines. Some might focus on the characters' adventures after the events of the movies, while others might explore alternate universes or prequels.
There are all sorts of storylines. Some might focus on the adventures of the dragon eggs, while others could explore the mystery behind their origin.
You might find adventures in unknown realms, character development with unexpected twists, and maybe some hidden secrets revealed.
Well, in such a crossover, we could see Naruto learning to bond with a dragon and use its powers in his ninja missions. There could also be interactions between the characters from both universes, leading to unexpected friendships and conflicts.
You could start by imagining a crossover world where characters from both universes interact. Maybe have Hiccup and Tarzan team up to face a common enemy in a wild adventure.