Maybe she was in a wild party scene and can't remember. Or it could be that she had multiple flings and can't pin it down.
There could be several reasons. Maybe she was in a state of confusion or under the influence of something at the time. Or perhaps she had brief encounters with multiple potential fathers and it's hard to determine which one it is.
The kidnapper could be an estranged family member of Beckett. There might be some family feud or inheritance issue that leads them to believe that by kidnapping the baby, they can gain an upper hand. Or it could be a completely random person who has a mental disorder and randomly targeted Beckett and the baby because they saw them as an easy target.
One possible plotline could be that the baby has some sort of special ability or is in some way connected to a mystery they have to solve. Maybe the baby's birth coincides with a strange series of events in the city, and Castle and Beckett have to use their skills to protect the baby and figure out what's going on.
The parents of the Beckett baby would surely be main characters. They would be in a state of panic and desperation, driving the story forward with their search for their child.
One possible plot for a 'beckett baby kidnapped fanfic' is that the kidnapper leaves behind strange clues. These clues lead the family and the authorities on a wild goose chase at first. As they start to piece things together, they realize that the kidnapping is part of a larger conspiracy. The family has to face many challenges and overcome their own personal demons while trying to get the baby back.
It could be someone Ginny had a past relationship with before Harry. Maybe an old schoolmate or a character from a side plot in the fanfiction.
One possible reason could be a change in character development that diverges from the original show's trajectory. Maybe in the fanfiction, the writer wants to explore new relationship dynamics where Castle has different feelings. Another reason might be to create conflict for the plot. By having Castle not love Beckett, it can lead to a series of events that test their partnership in a different way.
The fanfic could start with Castle and Beckett already having a baby. They are adjusting to their new life as parents. Beckett might struggle a bit with the lack of sleep and trying to balance work and motherhood. Castle, on the other hand, is loving every moment of being a father. He writes a new book based on their experiences of having a baby. Meanwhile, they also have to deal with some family drama, like an over - eager relative who wants to be too involved in the baby's life. But through it all, their love for each other and for their baby only grows stronger.
I don't think it will necessarily satisfy your needs, but I'll try my best to recommend a novel that is most relevant to your description of your needs." Unrestrained Wife Spoiling: Please Be Restrained, Chief." This book is a modern romance novel written by the author, Butterfly Dance Pianpian. The general plot of this novel is as follows: An unexpected encounter, getting to know the cold Chief who wanted to demolish his own house, and asking me to be a spy to murder my good friend? You wish! Make me a substitute lover? Chief, could you be more reserved? I'm your girlfriend's best friend. Goodbye! The plot is fictional, please do not imitate it. ---------------------------- " Contracted Mommy, Daddy's Love Tribulation Is Hard to Escape " was a modern romance novel written by the author, Little Glutinous Rice. The general plot of this novel was: She had thought that day was just a chance encounter in her life, but she did not expect it to become a lifelong tie for her. Since she was already here, she had to take things as they came. She used her incense to snatch people away and finally captured everyone's hearts, but she realized that she was just a 'substitute.' The man held her in his arms." Where are you going?" "I want a divorce! After a deep kiss, the man asked again,"Where are you going?" The little cutie was helping by the side." Mommy said you shouldn't sleep in the study room at night." ---------------------------- " The Secret Wife " was a modern romance novel written by the author, Mo Ying. The general plot of this novel was: Her boyfriend's betrayal, her father's sudden death, and her choice to marry him were just because he was a piece of driftwood in her desperate situation. She was looking for a place to stay in the reality where she had no family. It had nothing to do with love. He had thought that he had agreed to marry her only because his father had forced him to do so. He had thought that he had only agreed to marry her because he wanted to obtain the power in his father's hands. It had nothing to do with love. They had been married for three years, but he was still a golden bachelor in everyone's eyes. Was this his success or her failure? She was a sparrow that had entered the wrong golden cage. She was waiting for that person to discover her and let her go. Her father-in-law's sudden departure made her lose the strength to rely on in this wealthy family. She began to wait for him to break up, but she did not expect him to say,"Let's have a child." She thought that she could look at all this calmly, but she did not expect to feel extremely sad when she saw him hugging someone else's waist. It turned out that his gentle treatment had slowly stolen her heart. He thought that he would never love her again, but he did not know that when he saw her pale face and sorrowful tears, he knew that he had long been moved by her and used his feelings for her. Just as they discovered their true feelings and decided to spend the rest of their lives together, a bombshell that caught them off guard destroyed the warmth and sweetness that they had not had for a long time. ---------------------------- " Young Master Li, Your Ex-Wife Ran Away Again " was a modern romance novel written by the author, Green Bean. The general plot of this novel was: "So I'm just a substitute!" She left resolutely. "Let's get a divorce!" "Good!" "You left with nothing!" "Alright! All the assets will belong to you!" She left again, disheartened. "Wifey, please take her away!" She pushed him away with a look of disdain." We're already divorced!" "You didn't read the terms carefully when you signed. I'm yours too!" The man smiled wickedly." So you're still my wife!" Mini Theater 1: On the day of delivery, she had a ruthless look on her face." When the child is born, don't tell me if it's a boy or a girl. Let him take it away immediately and never see him again!" "Daddy, she's Mommy, right?" "How did you know?" "I secretly unlocked your phone and saw Mom's photo!" Little Theater 3:" Daddy, can I use all my toys in exchange for a chance to meet Mommy?" "Son, I'm not ready to see you yet!" "Why?" " Because Daddy lost her…" ---------------------------- " Mommy, Daddy's Tricks Are Too Deep " was a modern romance novel written by the author, August Caizhu. The general plot of this novel was: Six years ago, she was set up by her half-sister, and her reputation was ruined and she was expelled from the country. Six years later, she returned to the country as an internationally renowned perfumer and joined a rival company to take back everything that had been taken from her. Scumbag father, scum stepmother, scum sister, scum man. She wanted them to pay back everything they owed her. She was in the middle of torturing the scum and accidentally provoked a big shot. After the marriage, President Ye became a wife doting demon. "President Ye, Madam has been bullied!" The person who bullied her disappeared from Sea City Base the next day. "President Ye, Young Master wants to elope with Madam." The next day, Xiao Budian was sent abroad to study. "Honey, I'm going to the class reunion tomorrow. I can't bring my family along. Do you mind?" "I don't mind!" The man replied calmly. That night, all the boys who were going to attend the class reunion were hospitalized with broken bones. ---------------------------- " My Ex-Girlfriend is a Superstar " was a light novel written by the author, Cola. It was an original fantasy novel. The general plot of this novel was as follows: The book was also known as My White Picture Book, I Have No Reason to Be Killed by a Kitchen Knife, I'm Not a Scumbag, I'm Innocent, and so on. My neighbor and my family have been sworn enemies for a hundred years, but I've been secretly dating their superstar daughter for seven years… ---------------------------- " The Revenge Game: The Kidnapped Maid " was a modern romance novel written by the author, Tian Qin. The general plot of the novel was: She was brought to a strange mansion and then brought into the house by a mysterious evil man to be his maid… In the house, she suffered a lot and saw two men who looked exactly the same. Different personalities under the same face. Looking at the gentle and refined Second Young Master, she thought that she had found a life-saving straw. Little did she know that… In order to survive, she chose to escape! Could she…really succeed? ---------------------------- " The Tsundere Girlfriend's Manual " was a romantic youth-and-pain novel written by the author's blue fatty. The general plot of the novel was: Zhong Ci, who lived in the mountains, was chased out of the house by her adoptive father and was approached by her own father. She didn't have the expected father and mother, only an annoying bad brother and two accomplices. Zhong Ci had always wanted to leave that house, but the continuous drama and accidents made her change her mind. ---------------------------- " Misleading the Young Master: Forcibly Marry a Sweet Wife " was a modern romance novel written by the author, Ren Yingying. The general plot of this novel was: Her mother had passed away, her father had been imprisoned, and she had been reduced from a rich young lady to a lowly commoner. All of this was because of her undercover boyfriend. After failing to commit suicide, he left the country in despair. Four years later, he returned to his hometown, but the moment he got off the plane, he was kidnapped and experienced life and death. She was saved by a familiar embrace and fell into his endless love. Just when she thought that the bad luck was over and true love had arrived, fate played another joke on her. ---------------------------- " The Love of a Wealthy Family " was a modern romance novel written by Tao Xiaoxi. The general plot of the novel was: Her father stole the company, her stepmother plotted to sell her daughter, and even threatened her to get shares? Even her boyfriend had been snatched away by her younger sister. She was openly showing off her happiness! This was simply intolerable! She couldn't wait to get drunk at the bar, but she was actually kidnapped by a strange man? When she woke up with a hangover, who knew…that the person she was clinging to was actually her new boss? It was over! This was bad!
He could be ambitious. Maybe his ambition got in the way of their relationship. For example, if he was too focused on his career and didn't have enough time for Beckett. Also, he could be possessive. Some relationships in fanfics end because one person is too possessive, which makes the other feel suffocated.
A Castle and Beckett baby fanfic could be about their journey into parenthood. It might explore how they adjust to having a baby in their lives. For example, Castle could be super excited and start writing new stories inspired by his new family experience, while Beckett might be a bit more cautious and protective.