What are some interesting plot ideas for House of Hades fanfiction?

You could write a fanfiction where the House of Hades has a sort of time - warp effect. The demigods find themselves reliving parts of their past traumas while in there. This would not only be a great way to explore their backstories more but also add an element of psychological horror. Also, what if there was a character from Greek mythology that they thought was long dead but is actually alive and trapped in the House of Hades? They could then try to rescue this character while also fulfilling their main mission.

One idea could be exploring the backstories of the minor characters in the House of Hades more deeply. For example, the story could focus on how a particular spirit in the House got there and what their life was like before. Another plot idea could be a time - travel twist where Percy and his friends are sent back to an important moment in the history of the House of Hades to change something that has a big impact on their present situation. A third idea might be a 'what - if' scenario, like what if Percy had to face a challenge alone in the House of Hades without his friends and how he would overcome it.

One plot idea could be Percy and Annabeth getting separated in the House of Hades and having to find their way back to each other while facing different challenges unique to that realm. For example, Percy might encounter a group of lost souls who try to mislead him, while Annabeth has to solve a series of ancient puzzles to progress. Another idea could be that they discover a hidden power within the House of Hades that could potentially be used to defeat the ultimate enemy, but they have to first understand and control it. A third idea is that they meet a mysterious figure who claims to be able to help them escape, but has their own ulterior motives that Percy and Annabeth have to figure out.

Well, a cool plot for 'Percy Jackson The House of Hades' fanfiction could be a time - travel twist. Imagine if Percy and his friends got sent back in time to a crucial moment in the history of the House of Hades. They could then change something that has a huge impact on their present situation. Also, you could focus on a new character being introduced. This character could be a half - blood who has been trapped in the House of Hades for ages and has unique powers or knowledge that helps Percy and the gang. Or, how about a story where the House of Hades itself starts to change and become more like a living, breathing entity that's either trying to help or hinder our heroes?

Another plot idea is that there's a rift in the House of Hades that is slowly corrupting the place and they have to find the source of it. Along the way, they face their own inner demons. Annabeth might struggle with her insecurities about being smart enough to solve the mystery, while Percy battles with his fear of not being strong enough to protect Annabeth. As they overcome these personal struggles, they also get closer to solving the problem of the rift.

One idea could be exploring Persephone's adjustment to the Underworld. For example, she could start a garden in the gloomy realm using her powers over plants, which not only changes the look of the Underworld but also the attitude of its inhabitants. Another plot could be Hades trying to court Persephone in a more modern way, like taking her on a tour of different parts of the Underworld that are beautiful in their own dark way.

One plot idea could be that Hades and Maleficent team up to take over the magical realms. They combine their dark powers and start by causing chaos in the fairy kingdoms. Another could be a love story where they initially clash but then find common ground and fall in love, changing their evil ways for each other. Maybe they could also form an alliance to fight a greater evil that threatens both their domains.

Well, you could have a plot where Persephone and Hades have an argument over her time split between the Underworld and the upper world. This could lead to her leaving for a while and Hades having to go through a series of trials to win her back. Another idea is that they discover a new part of the Underworld together that has been locked away for ages and it holds a great power. They must figure out what to do with this power without causing chaos in both their worlds.

A fanfiction could be about the other characters' reactions when Percy and Annabeth are in the House of Hades. For example, how Nico feels knowing they are in such a dangerous place and what he does to try and help them from the outside.

One plot idea could be Mal struggling to fit into the Underworld society that Hades rules. Since she's from a different world in Descendants, adapting to the dark and often chaotic nature of the Underworld could be full of challenges and interesting character developments.