A fanfiction might depict Henry and Violet as time - travelers in the 'Once Upon a Time' universe. They accidentally travel back to the time when the first dark curse was cast. Here, they have to be very careful not to change the past too much, as it could have a disastrous effect on the future. They meet some of the original characters from the show and try to work with them to stop the curse from ever being cast in the first place.
One common theme is self - discovery. Violet often goes on a journey to figure out who she really is, like in many fanfictions where she discovers hidden powers or a new side of her personality. Another theme is friendship. She forms new friendships with other characters from the Once Upon a Time universe, and these relationships help her in her adventures.
The plot could be that Henry and Violet find an old, enchanted book that transports them into the stories within it. They have to go through different fairy tales, like Cinderella's world, where they help Cinderella get to the ball in a more unique way. Maybe they use a magic spell that turns a pumpkin into a flying carriage instead of the traditional way.
I also like 'The Mysterious Violet in Once Upon a Time'. This fanfiction delves deep into Violet's past, revealing secrets about her family and her true origin. It has a lot of mystery elements which keep the readers hooked. And then there's 'Violet's Quest for the Golden Key'. In this story, Violet embarks on a dangerous quest to find a golden key that is said to unlock a great power in the Once Upon a Time world.
Well, without having read the 'Once Upon a Time Henry and Violet' novel in detail, it could be that Henry and Violet are facing some sort of challenges. Maybe they come from different backgrounds and society is against their union. Or it could be a mystery where they are trying to solve a crime that has some connection to their families. The story might also be about their self - discovery journey as they grow and learn more about themselves and each other.
Maybe Henry and Violet start having shared dreams that seem to be premonitions of a coming danger to Storybrooke. They decide to investigate together, following clues that lead them to an ancient magic artifact. Along the way, they face challenges from an unknown villain who doesn't want them to uncover the truth.
They could go on adventures together. For example, exploring uncharted parts of the Enchanted Forest. This would give them time to rely on each other and learn more about one another.
Family relationships are a big theme. Some fanfics focus on the family dynamics between characters like the Charmings and their descendants. There are also fanfictions that revolve around the theme of identity. Characters in 'Once upon a time' often have complex identities, and fan writers like to dig deeper into how these identities are formed and how they can change over time.
A 'found family' trope is quite common. Characters who were alone or estranged in the show form a close - knit family in fanfiction. For instance, Henry might bring together different characters who then become his new family. Also, the 'hurt/comfort' trope, where a character is hurt (physically or emotionally) and another character comforts them, is frequently used in Once upon a Time fanfics.