I'm not entirely sure as I don't know the specific 'the dark swan story' in detail. But generally, it might be about a swan that has some sort of dark or mysterious aspect to it, perhaps in its nature, its experiences, or its significance in a particular context.
Yes, there are likely fanfictions out there with this concept. Fanfiction writers often take existing characters like Bella Swan and create unique scenarios for them, such as making her a moon princess. You can search on popular fanfiction websites to find such stories.
Well, the Swan Princess original story is centered around a beautiful princess. An evil entity, like a sorcerer or a witch, curses her and she becomes a swan. The story also has a prince who is smitten by the princess. He discovers her plight and decides to rescue her. There are elements of magic, adventure, and love. The prince may have to fight against the dark forces of the sorcerer. He might need to gather allies or learn special skills to overcome the challenges. And throughout the story, the connection between the prince and the swan - princess is what drives the narrative forward, until the curse is finally broken and they are united in their human forms.
The full story of the Swan Princess is quite enchanting. Once upon a time, there was a princess in a far - off kingdom. A jealous sorcerer, envious of her beauty and grace, cast a spell on her that made her a swan during the day. Only at night could she return to her human form. A prince from a neighboring land heard of her plight. He was immediately smitten by her story and set off to find her. When he did, he was determined to break the spell. He had to face numerous trials set by the sorcerer, such as mazes and battles with magical creatures. But through his love for the princess, which was pure and strong, he overcame all these obstacles. In the end, he found the key to break the spell, which was often something related to true love's kiss or a selfless act. And so, the princess was freed from the curse and they got married, uniting their two kingdoms and living a life full of love and peace.
Sure, it's very possible. In fanfiction, the sky's the limit. Writers might imagine Bella Swan in this role to explore different aspects of her character. For example, she could be a reluctant princess of hell, trying to bring some sort of order or goodness to the chaotic realm. Or perhaps she was sent there by some dark force and has to find a way to escape while also dealing with her newfound status. There are countless directions a story like this could go.
The main idea might be about the experiences related to a swan as it is based on a true story. It could involve the swan's behavior, its interaction with the environment or people, but without reading it, it's hard to be more specific.
The main events include the princess being turned into a swan by the sorcerer. Then the prince's decision to rescue her. Also, the battles against the sorcerer's forces.