Friendship is also often seen. When characters from different universes meet in these crossovers, they have to learn to work together. Like in a crossover with Chip 'n Dale's Rescue Rangers, at first they don't trust each other, but as they face challenges, they become friends and rely on each other's strengths. This theme of friendship developing between different characters is really appealing.
I'm not sure specifically who 'Maggie Fenton' is within the context of Fantastic Fiction. It could be an author, a character, or someone related to the Fantastic Fiction community. Without more information, it's difficult to say for sure.
The Fenton Canaby story isn't based on true events. It's more of a fictional creation, crafted to entertain and engage readers through imaginative plotlines and characters.
One great DuckTales 2017 crossover fanfiction is the one where they cross over with the world of Darkwing Duck. It's really cool as it combines the adventurous spirit of DuckTales with the crime - fighting action of Darkwing Duck. The characters interact in a very interesting way, and the author does a great job of keeping their personalities intact.
Since I'm not familiar with Maggie Fenton in Fantastic Fiction, I can't really say what her related works are. It could be that she has novels, short stories, or other written works within the Fantastic Fiction collection. You could try looking for her name in the Fantastic Fiction catalogue, or checking if there are any reviews or mentions of her works online.
One idea could be a crossover where Peter Parker's Spider - Sense starts acting up and he discovers that there's some sort of supernatural occurrence in Amity Park, Danny Fenton's hometown. So he travels there to investigate and teams up with Danny to fight off both the supervillains and the ghosts.