Grover Underwood can be a great addition. His loyalty and his role as a satyr, especially his connection to nature, can bring a different dynamic. For example, a story where Grover discovers a new type of magical plant near Camp Half - Blood that has the power to heal even the most serious wounds, and he has to protect it from those who would use it for evil.
Annabeth Chase is also very popular. Her intelligence and strategic thinking can add a lot to a fanfiction story. You could write about her leading a mission or solving a mystery within the camp.
Percy Jackson is a must - include. He's the hero of the original series and has a lot of adventures and relationships that can be further explored in fanfiction.
In Camp Half - Blood fanfiction, Nico di Angelo is a very popular character. His dark and brooding nature, along with his powers over the dead, draw a lot of readers. At Camp Jupiter, Reyna is often a central figure. She's strong, independent, and has a lot of leadership qualities, which make her a great character in fanfiction stories.
Percy Jackson is an obvious choice. His abilities and leadership skills from Camp Half - Blood would be a great addition to any story where the two camps meet. He could interact with the Roman demigods, maybe even have some friendly rivalries with the strong leaders from Camp Jupiter like Jason Grace. His loyalty to his friends and his sense of humor would also add a lot to the story.
There's Percy Jackson. He's a key character, being a demigod son of Poseidon. And Annabeth Chase, daughter of Athena.
Obviously, the new girl would be a main character. She could be someone with an unknown parentage at first, like many demigods. Another main character could be the camp director, who would be guiding her and trying to keep her safe. There might also be a friendly camper, like a son or daughter of Hermes, who takes the new girl under their wing and shows her around the camp.
I think Tyson would be an excellent character to include. He's Percy's half - brother and his strength as a Cyclops could be very useful in various situations. His innocence and loyalty also make him a lovable character. Additionally, Clarisse could be paired with them. She has a tough exterior but deep down she's a strong and capable demigod. Her rivalry - turned - friendship with Percy could add some spice to the fanfiction. And of course, Chiron, the centaur, could be involved. His wisdom and guidance are always valuable and could play a crucial role in their adventures.
Annabeth Chase could also be a main character. She could be using her intelligence to figure out the secrets behind a strange lemon - based phenomenon at the camp. For example, she might be trying to understand why the lemon trees are suddenly producing golden lemons with magical properties.
Typically, there's the mortal who is visiting the camp. This could be an ordinary person like a school student or a young adult just starting out in life. Then there are the demigods at Camp Half - Blood, such as Percy Jackson - like characters who are already well - known in the original series. They play a crucial role in interacting with the mortal and showing them around the camp.
Reyna from Camp Jupiter would also be a great character to focus on. She's strong, intelligent, and has a lot of leadership experience. In a fanfiction where the two camps meet, she could represent the Roman side well, and her interactions with the Greek demigods would be full of potential for conflict and cooperation. For example, she might initially be skeptical of the more laid - back Greek approach to things, but come to appreciate it as they work together.
Definitely Percy himself. He is the main character of the original series, and his actions and decisions drive the story forward. Annabeth is also a great choice. Her intelligence and strategic thinking often complement Percy's more impulsive nature. Grover can bring some humor to the story with his satyr antics.
Some would be very curious. They've probably never seen someone like Harry before. Others might be a bit skeptical, wondering what his intentions are.