It could be a vengeful god or goddess. Maybe one who has a grudge against the demigods in general and sees Annabeth as an easy target to send a message. For example, a minor god who feels overlooked and wants to prove their power by kidnapping such a well - known demigod.
The Titans or their followers might be the kidnappers. They might see Annabeth as a threat to their plans of overthrowing the gods. Since she's smart and strategic, they could want to keep her out of the way or use her knowledge against the gods and other demigods.
Another likely kidnapper could be a powerful and jealous demigod from another camp. They might be envious of Annabeth's skills and reputation. So, they kidnap her to steal her ideas or to make their own camp look better by making Annabeth's camp look weak without her.
Chapter 307, "I Am Sister's Real Younger Brother!", is the clearest early answer because it turns Zhou Wenshu's situation into a concrete plot event. It opens with From the certificates and trophies on the wall, it was clear that...
Chapter 222, "Oh, Miss Jiang Has Drawn It", is the clearest early answer because it turns Director Sun's situation into a concrete plot event. The chapter turns that into something concrete by moving from How come they're even live streaming in a reality show?!
Chapter 225, "Just 100,000? Are you buying mineral water for the boss?", is the clearest early answer because it turns Crystal Castles's situation into a concrete plot event. It opens with When Zhao Lang's devastatingly handsome face appeared, all six people...
Chapter 333, "Silver Mine from the Heavens, Yu Yao and Yu Sheng, No Need for an Ox Knife to Kill a Chicken [10,000-Word Mega Chapter Continued]", is the clearest early answer because the violence around Chen Ying becomes final instead of hypothetical. Early on, This valley is located inside the mountain of Twin Dragon Mountain,.... By the end, Chen Ying saw his face full of excitement and, recalling how Xia Hong....
Chapter 38, "Pretending to be a Top Student? You Must Have Forgotten Your Own College Entrance Exam Score!", is the clearest early answer because it turns Jiang Li's situation into a concrete plot event.
Chapter 4, "She Can Actually Tell Fortunes?!", is the clearest early answer because it turns Qiao's situation into a concrete plot event. The chapter gives readers a real answer by opening on Qiao regretted her words as soon as they left her mouth.
Chapter 164, "Congratulations to Jiang Yan for scoring one point!", is the clearest early answer because it turns President Shang's situation into a concrete plot event.
Chapter 35, "Stunning Beauty Shocks the Prosperous Age, Tops the Trending Searches!!!", is the clearest early answer because it turns Jiang Li's situation into a concrete plot event.
Chapter 217, "No Problem, They're All Red Anyway", is the clearest early answer because it turns Su Yinwan's situation into a concrete plot event.
Chapter 68, "She finally managed to win a round back!", is the clearest early answer because it turns West District's situation into a concrete plot event. A useful checkpoint is the way the scene starts with Jiang Li carried the noodles straight out of the kitchen and came to...