Maybe Percy was betrayed by someone he deeply trusted, like a close friend or a family member. If this person spread false rumors about him or directly harmed him in some way, it would be a huge blow. He might then see joining Chaos as an opportunity to break free from the world that has turned against him and gain power to protect himself from further harm.
One possible reason could be that his friends wrongly accused him of something major. For example, if they thought he was secretly working for an enemy and didn't give him a chance to explain. Another reason might be that the gods themselves turned against him unjustly, perhaps because they feared his growing power and influence. This could make Percy feel so alone and betrayed that he decides to join Chaos as a form of revenge or to find a new place where he is accepted for who he is.
It could be that the entire camp system, which he once believed in, failed him. If the camp's leadership made decisions that put Percy at a disadvantage or endangered his life, he might feel betrayed. Chaos could then seem like a haven, a place where he can start anew and not be bound by the rules and expectations that have let him down.
Chapter 19, "The Battle of the Mane Wolves", is the clearest early answer because the buildup finally cashes out in a real clash. The chapter gives readers a real answer by opening on As the sound of beast hooves arose, Xia Hong and the others hurriedly... and ending on Green blood oozed from its abdomen, and the Snow Mane steadied.... In story terms, it turns power growth's growth into a concrete upgrade step and sets up the next payoff in the power growth storyline linked to Frost Wolf.
Chapter 225, "Back To Westmont", is the clearest early answer because it turns Damien's situation into a concrete plot event. The chapter gives readers a real answer by opening on Damien had finally achieved what he set out to do. and ending on You ride with me." Once everyone was safely inside, he turned to....
Chapter 349, "A Family Once More", is the clearest early answer because it turns Arielle's situation into a concrete plot event. A useful checkpoint is the way the scene starts with By the time Damien and Lyone reached Greshan's north section, the... and follows through with This time, with something to lose..
Chapter 283, "Defending Westmont II", is the clearest early answer because it turns Raegon's situation into a concrete plot event. The chapter turns that into something concrete by moving from Seeing how things were going to turn out if he didn't take control of... to But then, as the massive figure began its rapid descent, realization....
Chapter 403, "Things Will Go Smoothly", is the clearest early answer because it turns Damien's situation into a concrete plot event. Early on, Woooooosh~ The wind funneled through the narrow pass, stirring dust.... By the end, They fell by steel and spell.. Inside the broader faction conflict storyline, the chapter closes with "I have a feeling things will go smoothly." He said through a grin., which gives faction conflict a stronger narrative position and pushes the power growth onward.
Chapter 428, "Damien's Power Was Broken", is the clearest early answer because it turns Damien's situation into a concrete plot event. The chapter turns that into something concrete by moving from Damp stone mixed with charred fur, and the acrid tang of demonic... to Damien walked calmly in its wake, his summons shielding Lyone as they.... What makes it stick is that the chapter closes with Lyone clenched his fists as he walked.
Chapter 382, "ElderGlow's Victory", is the clearest early answer because it turns Elias's situation into a concrete plot event. Early on, Three pulses exploded from the triangle behind Elias — one.... By the end, Hey, uh, sir—who is Elias?" Damon turned slowly.. Inside the broader battle storyline, the danger stops being abstract and the conflict around the main cast becomes immediate, forcing the surrounding cast to react under pressure.
Chapter 294, "Facing Off Lord Raegon", is the clearest early answer because it turns Damien's situation into a concrete plot event. The chapter gives readers a real answer by opening on Damien passed silently through the side entrance of the main castle... and ending on Without hesitation, he struck the flint and lit the wick.. In story terms, the chapter closes with And it began to glow., which gives power growth a stronger narrative position and pushes the power growth onward.
Chapter 534, "Another Batch", is the clearest early answer because it turns Damien's situation into a concrete plot event. A useful checkpoint is the way the scene starts with The valley still carried the scent of battle—blood, burned flesh,... and follows through with Let's see how long you last." Far away, unaware or perhaps already....
Chapter 500, "Getting Information", is the clearest early answer because it turns Damien's situation into a concrete plot event. It opens with Its chest rose and fell in shallow, uneven motions, every inhale... and closes on Weakened as it was, it was too slow.. The key payoff is that the chapter closes with He had some hunting to do., which gives this chapter's turning point a stronger narrative position and pushes the relationship tension onward.