Some Burgess characters could be a bit skeptical of the Guardians at first. They might think the Guardians are just stories. But when they actually meet them, they start to have a more hands - on interaction. Like a girl from Burgess who challenges Toothiana to prove she's real by showing her where all the teeth are hidden in Burgess. This leads to a fun and adventurous interaction between them.
Well, in the fanfiction, the Burgess characters could also interact with the Guardians in a way that they help the Guardians understand human emotions better. Since the Guardians are protecting the children, the Burgess kids can show them what it really means to be a child in today's world. For instance, they might introduce the Guardians to modern games or new ways of having fun, which in turn helps the Guardians in their mission to protect the children's hopes and dreams.
One interesting plot twist could be when a character from Burgess who was thought to be just an ordinary person turns out to have a hidden power that is crucial in helping the Guardians. For example, a young girl might discover she can control ice like Jack Frost, which was unexpected and changes the whole dynamic of their fight against the bad guys.
The idea of good vs. evil is present in both. In Rise of the Guardians, it's the Guardians against Pitch Black. In Frozen, it's Elsa against her own fears which can be seen as an internal evil. In fanfiction, the Guardians could help Elsa face her fears. Jack Frost could use his carefree nature to show Elsa that she doesn't need to be so afraid. And the Frozen characters could help the Guardians in their fight against Pitch by bringing their own unique skills and determination.
You can start by looking on popular fanfiction websites like Archive of Our Own or FanFiction.net. Use the search function and type in 'Guardians Watches Rise of the Guardians'. Then, you can sort the results by popularity or rating to find the ones that are highly regarded by other readers.
On the other hand, characters like Sandy might be a bit more reserved. He might not fully understand all the wild ideas in the fanfiction at first. But as he watches or is exposed to it more, he might start to adapt some of the positive elements. For instance, if the fanfiction has a new way of using dreams to solve problems, he might consider incorporating that into his own methods.
When the characters of 'Frozen' meet those of 'Rise of the Guardians', there would be a mix of reactions. Elsa, being the queen, would approach the situation with caution. She would likely be polite but reserved. Jack Frost, on the other hand, would be very eager to interact. He might show off his powers a bit to Elsa and Anna. Anna would be completely open and enthusiastic, wanting to know all about the Guardians. The Guardians, as protectors of children, would see the good in the characters of 'Frozen'. North would probably offer his help and resources if Arendelle ever faced a big threat. The Tooth Fairy would be interested in the unique culture of Arendelle. And Bunny might initially be a bit grumpy about the new situation, but would eventually warm up to the 'Frozen' characters as he saw their kind hearts and their own forms of heroism.
Some fanfictions might take a different turn and introduce new threats to the guardians. Picture a story where a powerful dark force from another dimension comes to their world. The guardians then have to find new powers within themselves and work together in ways they haven't before to defeat this new enemy.
In a fanfiction, Hermione would probably be very interested in studying the Guardians. She might ask a lot of questions about their origin and powers. Meanwhile, Santa Claus from Rise of the Guardians could be impressed by the loyalty and courage of the Hogwarts students. He could offer them some of his special gifts or knowledge to help in their fight against evil. Harry, on the other hand, might feel a connection with Jack Frost as they both have a sense of being different and having a special destiny.
North, also known as Santa Claus in Rise of the Guardians, could be an interesting character to pair with Hiccup. North has his workshop full of magical toys and elves. Hiccup could learn a lot about different kinds of magic from North. And North could be impressed by Hiccup's ability to tame dragons and might even want to have a dragon - powered sleigh for Christmas. Their interactions could be really fun to read about.
Some fanfictions might have a plot where Hiccup is mistaken for a new Guardian. He has to prove himself worthy while also trying to figure out how he can get back to Berk. In this process, he could form strong bonds with the other Guardians. He might teach them about the importance of friendship with different species, like how he is friends with Toothless, and they in turn could teach him about their powers and the magic that keeps the world in balance.
His character could also develop in terms of his understanding of different kinds of magic. He starts off knowing only about the magic related to dragons. But in the fanfiction, as he watches and interacts with the Guardians, he begins to understand their magic. This could lead to him becoming more open - minded and adaptable. He might start to think about how the different magics could work together to protect both his world and the world of the Guardians. And this new knowledge could also change how he approaches problems back in Berk. For instance, he could try to incorporate some of the Guardians' ideas or magic - like things into his dragon - training methods.