Well, first of all, the story could focus on Annabeth's inner strength during the ordeal. She might try to outwit her captors. Meanwhile, her friends would be using all their skills and resources to find her. Maybe they would discover some secrets about the kidnappers that would help them in the rescue mission. It could also explore how Annabeth's kidnapping affects the relationships within the group. For example, some might blame themselves for not protecting her better, and this could lead to some tension among the characters before they finally come together to save her.
There are several candidates. It could be a rogue demigod who has turned to the dark side. They might think that by kidnapping and torturing Annabeth, they can gain power or recognition. It could also be a minion of a major god who is acting on their master's orders, perhaps because Annabeth has somehow angered that god. Additionally, it could be a mysterious figure from a long - forgotten prophecy who believes that Annabeth is the key to fulfilling their dark desires.
In such a fanfiction, Naruto's friends would likely go on a desperate search for him. Sasuke might put aside his pride and team up with the others. They would follow any leads, like tracking the kidnapper's chakra signature if possible.
No. Kidnapping and torture are extremely serious and immoral acts in real life. Fanfiction that involves such themes can be disturbing and may have a negative impact on the readers' mental state. It also goes against basic moral and ethical values.
In fanfiction, this would be a very dark and unlikely scenario. The Avengers are generally heroes and Percy Jackson is also a heroic figure. But if it were to happen, it might be due to some sort of misunderstanding. Maybe the Avengers mistake Percy for a threat. However, this goes against their moral code, so it would likely cause a lot of internal conflict within the Avengers group as they realized their mistake.
If Naruto is kidnapped by Kumo in fanfiction, it could lead to a series of intense battles. Naruto himself might try to escape on his own using his ninja skills and the power of the Nine - Tails. His captors in Kumo would probably want to extract some sort of information from him, like the secrets of the Nine - Tails or Konoha's defense strategies. However, Naruto is a tough character and would surely put up a fight.
Well, in this kind of fanfiction, usually the main character might be in a state of fear at first. They could be held in a spooky castle or lair of the vampire prince. Maybe they would try to escape but find it difficult due to the vampire's powers and the unfamiliar surroundings.
In fanfiction, if Deku gets kidnapped, his friends from U.A. High would likely launch a rescue mission. Bakugo might be especially determined, as much as he tries to hide his concern. They would use their quirks in creative ways to track Deku down.
In the 'sonic is kidnapped by scourge fanfiction', Sonic's friends would surely be worried sick. Tails might start using his gadgets to track Sonic down. Meanwhile, Sonic himself would be constantly thinking of a way out. Scourge could have kidnapped him for various reasons, like to prove he's stronger or to get some sort of information from Sonic. Sonic would not go down without a fight though, and he'd be looking for any opportunity to break free and foil Scourge's plans.
In a Destiel - centered fanfiction where Sam is kidnapped, perhaps it's all part of some grand scheme to make Dean realize his true feelings for Cas. The kidnappers might be some over - zealous fans within the story who think that by causing chaos, they can bring about the Destiel endgame. They could hold Sam in some strange, other - dimensional location and send Dean and Cas on a quest to find him.
In the 'tsuna gets kidnapped fanfiction', perhaps his friends would immediately start a rescue mission. They might use their unique skills and powers to track down where Tsuna is being held.