The child was kidnapped

In a fanfiction about Peter Parker being kidnapped as a child, it might focus on how his family and friends reacted. Aunt May would be devastated. His friends like Ned might try to find him on their own, getting into all sorts of trouble in the process. It could also show Peter's early display of his spider - like abilities as he tries to escape from his captors.

In this kind of fanfiction scenario, the story could be filled with intense emotions. Castle and Beckett would surely be devastated. They would immediately start using their detective skills and connections to search for their child. They might start by retracing their steps, thinking about any enemies they've made during their investigations. Maybe they'd discover a clue in an unexpected place, like a toy left at the scene that has some hidden message or marking on it.

In a 'midoriya kidnapped as a child fanfiction', it could start with Midoriya being lured away by a seemingly friendly stranger who turns out to be a kidnapper. The kidnapper might be working for a powerful enemy of the heroes. Midoriya, being a smart and resourceful kid, tries to leave clues for his rescuers. His mother, Inko, is distraught and contacts the heroes. The heroes then have to search through different areas, following the sparse clues Midoriya has left. There could be a lot of emotional turmoil among the characters as they worry about Midoriya's safety and try to find him as quickly as possible.

A vengeful villain whose plans were once thwarted by a hero could be the kidnapper. He might think that by kidnapping Midoriya, he can draw out the hero and get his revenge. Midoriya is just an innocent pawn in his evil scheme.

One possible scenario in this fanfic could be that Castle and Beckett race against time to find the kidnapped child. They might start by interviewing the family and friends of the child, looking for any leads. Maybe they discover that the kidnapper left a cryptic message that only Castle's writer - brain can decipher.

A fanfiction could show Peter being kidnapped by a criminal mastermind who wants to use him as leverage against Spider - Man in the future. Peter, as a child, would have to find a way to escape and also figure out how to stop this person from ever coming after him again. It could involve him making new friends among other kidnapped kids who help him in his escape plan.

In a dark alley, young Peter Stark was snatched. The kidnappers, a group of villains, had no idea who they really had. Peter, though just a child, was already brilliant. He used his wits to leave small clues along the way. His father, Tony Stark, was in a panic. He launched all his resources to find his son. Meanwhile, Peter was trying to outsmart his captors, waiting for the moment to escape and be reunited with his family.

There could be a moral dilemma in the story. What if the kidnapper demands something unethical in exchange for the child? Castle and Beckett would have to decide how far they are willing to go to save their child. This could test their relationship and their values. But in the end, they would find a way to outsmart the kidnapper and get their child back safely.

One possible motive could be money. The Stark family is wealthy, so the kidnappers might be after a large ransom. They could think that by holding Peter captive, they can force Tony Stark to pay up a huge sum.

Another plot twist could be that the child wasn't really kidnapped but was hidden away by a family member for some strange reason. And as Castle and Beckett dig deeper, they find themselves caught in a web of family secrets and lies that has more to do with protecting the child from a greater danger that they are not yet aware of.