One idea could be that a powerful dark sorcerer kidnaps Elsa because he wants to use her ice powers for his own evil deeds. He locks her in a magically sealed dungeon deep in an ancient castle. Another plot could involve a group of thieves who mistake Elsa for a valuable princess they can ransom. They take her to a hidden lair in the mountains. A third option is that a jealous rival from another kingdom, who envies Elsa's powers and her popularity, arranges the kidnapping to discredit her.
Anna would surely be the first to help Elsa. Anna has always been there for her sister, and when Elsa gets sick, she would do everything she could, like bringing her warm soups and staying by her side to keep her company.
In some of these fanfictions, Sven could be a significant character. He might help Kristoff in his tasks related to Anna's pregnancy, like carrying supplies. Another character could be the trolls. They are known for their wisdom in the Frozen universe. So they could offer advice to Elsa and Anna about their pregnancies, such as how to deal with any magical complications or how to raise their children to be good and strong. And of course, the people of Arendelle are also important. Their reactions and support play a role in the story.
There is this fanfiction called 'Elsa's New Path'. It takes a different turn from the original story, showing how Elsa and Anna face new challenges together. It has a really engaging plot that keeps you hooked. In this fanfiction, the author does a wonderful job of maintaining the essence of the characters while adding new elements to their story. It also delves deeper into their relationship, exploring how they support each other in difficult situations. There are some really heart - warming moments between the two sisters that make it a great read for fans of Anna and Elsa.
In this fanfiction, Marshmallow could be a significant character. He's a large and somewhat intimidating snow creature created by Elsa. But with the baby on the way, he could become a gentle protector. He could stand guard outside their home to keep any potential threats away. Also, the trolls from the Frozen universe could play a role. They are wise and could offer their knowledge on how to take care of a baby with magical powers. They might even perform a special ceremony for the unborn baby.
Their relationship would likely become more solid. Having a baby together means they have a new shared responsibility. They would have to rely on each other more, like when taking care of the baby at night or making important decisions about the baby's future.
First, develop interesting characters. Make the twins have distinct personalities. For example, one could be brave and impulsive while the other is more cautious and analytical. Then, create a tense and mysterious setting for the kidnapping. Maybe it's an abandoned warehouse on a stormy night. Also, build up the motivation of the kidnappers. Are they after ransom, revenge, or something else? This will keep readers engaged.
The Naraku would be a likely kidnapper. He is always plotting against Inuyasha and trying to get his hands on the Tessaiga. Kidnapping Inuyasha would be a way for him to either steal the sword or find a way to break Inuyasha's spirit so that he can no longer oppose him.