It could be a group of rogue demigods who want to use the Dragon King's power for their own evil purposes. They might be jealous of Percy's status and see the Dragon King as a means to gain more power and control in the mythical world.
One idea could be Percy having to form an unlikely alliance with the Dragon King to defeat a common enemy, like a new and powerful Titan. The Dragon King might have his own motives and secrets that Percy has to figure out during their partnership.
One idea could be that Percy turns into a dragon to fight a powerful sea monster. Since he has his connection to water, as a dragon he could breathe a sort of water - based fire or ice that freezes the water around the monster, trapping it.
One great 'Dragon Percy Jackson Fanfiction' is 'The Dragon's Bond'. It's about Percy encountering a dragon that has a mysterious connection to his demigod powers. The story is full of action as Percy tries to figure out the dragon's origin and how it ties to his destiny in the world of demigods.
It depends. Some Percy Jackson fans might be really into this kind of fanfiction as it combines two exciting elements - Percy Jackson and dragon riding. However, compared to the more mainstream Percy Jackson stories, it may not be as widely known. There are a lot of different fanfiction out there, and popularity can vary greatly depending on the specific fan community and how well it's promoted among Percy Jackson enthusiasts.
One change would be his interests. Instead of just focusing on Greek mythology and his demigod adventures, he now has an additional passion for dragons. He might start spending his free time reading dragon lore.
In some Percy Jackson fanfictions, he might be depicted as the King of Hell, but this is a departure from the original series. Fanfic authors like to take creative liberties and explore different scenarios for their characters.
Yes, there are quite a few out there. You can find some on popular fanfiction websites like Archive of Our Own. Just search for 'Percy Jackson is the king' and you'll be presented with a variety of stories that explore this interesting concept, with different plotlines and character interpretations.
His friends from Camp Half - Blood would be his allies for sure. Annabeth, with her strategic mind, would be invaluable. Grover, the satyr, could help Percy communicate with nature spirits which could be useful. But also, some of the minor gods who feel left out by the major Olympians might side with Percy. For example, Hecate could use her magic to assist Percy, seeing him as a chance for a new order in the Olympian world. There's also Tyson, Percy's cyclops half - brother, who would be a strong and loyal ally.
His first reaction might be shock. Dragons aren't exactly common in his world, even with all the mythical creatures. But then his hero instincts would kick in. He could try to befriend the dragon, thinking it could be an ally in future battles against the Titans or other enemies. He might offer it some food, like a fish or something, to gain its trust.