There are many stories where a family is kidnapped. In some cases, it's for ransom. The family members often have to stay calm and look for opportunities to signal for help. For example, in a real - life case, a family held captive managed to leave a mark on a window that was noticed by a passer - by, which eventually led to their rescue.
I recommend "My Life on the Island", an urban supernatural novel, to you. Although the plot did not completely match the novel's title, the male protagonist also survived on the island and began a series of adventures on the island. The girlfriend wasn't kidnapped, but the female lead was also trapped. I hope you like my recommendation. Muah ~
The Cullens are the most likely. Edward, with his mind - reading ability, can try to sense where Renesmee is. Bella, with her strong will and vampire strength, would be at the forefront of the rescue mission. And Carlisle, with his wisdom and leadership, would plan the whole operation.
The kidnapper was most likely arrested. Once the child was rescued, the police would have had evidence against the kidnapper from the rescue operation itself, like their location and any items left at the scene.
In the search results provided, he did not find any novel recommendations for survival games.
Star would be a likely candidate to rescue Marco. She has strong magical abilities and a deep friendship with Marco. She would stop at nothing to find him and bring him back safely.
There's a chance that Jamie himself could rescue himself. He might be really smart and find a way to outwit Phil Sanfino. Maybe he discovers a weakness in Phil's security or manages to turn Phil's minions against him. This would make Jamie a very strong and independent character in the fanfiction.
Maybe Pepper Potts could find out what Tony has done and rescue Peter. She might be able to talk some sense into Tony and make him release Peter.
Anna would be a likely candidate to rescue Elsa. She loves her sister deeply and has shown great courage in the past. She would stop at nothing to find and free Elsa from Hans.
It could be Nightwing. He was once Robin himself and has a special connection to the current Robin. Nightwing might hear about the kidnapping and step in to save Robin, using his own unique fighting style and experience.
His friends like Kuwabara and Kurama might also join in the rescue. Kuwabara with his tough fighting spirit and Kurama with his cunning and powerful abilities could be a great help in getting Keiko back from Toguro.