At first, it could be quite rocky if they find out later in the story. Percy might be angry that Luke has been keeping secrets or has done bad things in the past. But eventually, they would likely grow closer as they realize they are family and start to support each other.
Fanfiction about Percy Jackson and Luke often delves into their dynamic. Luke's betrayal in the main series is a big event. In fanfiction, writers might rewrite this relationship. They could show Luke's earlier days with Percy, how they might have been friends before things went wrong. There could be stories where Percy tries to convince Luke to come back to the right side, exploring themes of forgiveness and redemption. This gives readers a different perspective on the characters and the world of Percy Jackson.
One possible plot could be that they discover their brotherhood early on. They then team up to face the various challenges in their world. Maybe they use their combined powers, like Percy's water - related abilities and Luke's combat skills, to fight against a common enemy, such as a powerful monster that threatens their home.
Luke himself would have a very different relationship with his own followers. If Percy's death makes him realize the wrongness of his actions, he might try to distance himself from his old allies who were involved in the actions that led to Percy's death. This would cause a rift among his group, with some still believing in the old cause and others being swayed by Luke's newfound conscience. At the same time, Luke would be constantly thinking about Percy and might even start to idolize him in a way, trying to live up to the selfless hero that Percy was.
Well, in fanfic, Percy and Luke's relationship can be re - imagined in many ways. A lot of fanfic writers like to delve into Luke's backstory more deeply. They might show how his relationship with Percy could have been different if certain events had not occurred. Sometimes, it could be a mentor - like relationship where Luke imparts some knowledge to Percy that he didn't in the original. Or it could be a more competitive one where they constantly try to outdo each other in different challenges that the fanfic writer creates.
Percy is often impulsive and brave. Luke, on the other hand, is more calculating. In a fanfiction, they could clash over how to approach a situation. For example, when facing a group of monsters, Percy might want to charge in head - first while Luke would prefer to strategize. This difference could create tension and also opportunities for them to learn from each other.
A great plot could involve a prophecy that centers around their brotherhood. Percy and Luke are initially on opposite sides due to Luke's association with the Titans. But when they find out they are brothers, it throws everything into chaos. They have to navigate their relationship while also trying to figure out how to fulfill or avoid the prophecy. There are a lot of emotional moments as they struggle with loyalty to their respective camps and to each other as family.
One aspect that could be explored in a Percy Jackson and Luke fanfic is their opposing views. Percy stands for the good, while Luke turns to the dark side. A fanfic could delve into what might have made Luke change his path if Percy had intervened earlier. It could show their early interactions at Camp Half - Blood and how Percy's loyalty and Luke's growing resentment were seeded.
Well, in a 'Luke Kills Percy' fanfiction, it could start with some deep - seated resentment or a new, unexpected motivation for Luke. Maybe Luke discovers some dark secret that makes him believe Percy is a threat to his goals. The actual killing would be a shocker, and then the story could explore the aftermath, like how the other characters react. They might be filled with grief, anger, and a thirst for revenge. It would be a very different take on the familiar world of the story, and might even lead to a completely different end - game for the remaining characters.
If Percy joined Luke, it might complicate the dynamics. Maybe they'd have to face new challenges together or deal with the reactions of other characters. It could really shake things up!
The relationship would likely be more sibling - like from the start. In the original story, they didn't know they were siblings for a long time. But in this fanfiction, they'd grow up with that knowledge. So, they'd be more protective of each other right away and have a deeper understanding of each other's quirks and abilities.