Well, in some fanfictions, the plot might revolve around the cultural differences between Harry's more 'light' upbringing and Rabastan's dark family heritage. There could be a lot of drama as they try to build a life together. Maybe Harry uses his influence to change Rabastan's views, or they might be on a secret mission together that forces them to rely on each other and grow closer as a result.
One possible plotline could be the struggle Harry faces within the wizarding community due to his marriage to Rabastan. People might be suspicious and distrustful, thinking he has turned to the dark side. Another could be how Harry tries to redeem Rabastan, or perhaps they discover a common goal that unites them against a new, emerging threat in the wizarding world.
At first, it might be full of tension. Harry may be hesitant and Rabastan could be guarded. But as they start to spend more time together, they gradually begin to understand each other. Maybe they share a love for a particular type of magic that serves as a common ground.
One plot idea could be that Rabastan, in an alternate universe, is forced to team up with Harry Potter to fight a common dark magic threat that endangers both the wizarding world and the Death Eaters' own interests. This would create a lot of tension as they have to overcome their natural enmity.
In a fanfiction, Rabastan could be in a situation where he's being hunted by a vengeful wizarding family. Hermione accidentally gets involved when she's exploring an old wizarding stronghold. She uses her quick thinking and magic skills, like her time - turning spell in a creative way, to outwit the hunters and save Rabastan. Another idea is that Rabastan is trapped in a magically sealed chamber. Hermione, through her ability to solve complex magical puzzles, finds a way to break the seal and rescue him. It could also be that Rabastan has a change of heart and is trying to redeem himself, but some of his former dark associates don't want that to happen and try to kill him. Hermione steps in to protect him.
The idea of Harry Potter being the son of Rabastan Lestrange in fanfiction is quite wild. It would likely involve a lot of changes to the original plot. For example, his time at Hogwarts could be full of challenges as he tries to fit in while also dealing with the stigma of his new family. His skills in magic might develop in a different way too. He could have a natural inclination towards the Dark Arts, which he would have to struggle with. And the way the story would handle his relationship with Voldemort would be very different, perhaps even more complex.
A major theme is the exploration of his character's complexity. Instead of just being a villain, fanfictions try to show his different sides. His past traumas or the reasons he got involved with the Death Eaters in the first place. There's also the theme of survival in a post - war wizarding world, where he has to deal with the consequences of his actions and find a way to exist.
The theme of secrecy and hidden knowledge is prevalent too. Rabastan might know secrets about the Death Eaters or the wizarding world in general. Fanfictions play with this idea, showing Harry or other characters trying to uncover these secrets from Rabastan. It creates a sense of mystery and suspense throughout the story, making it engaging for the readers.
One possible plotline could be how Harry and Tonks navigate their different personalities. Harry is often seen as serious and determined, while Tonks is more carefree and fun - loving. Their relationship might start with some misunderstandings due to these differences but then grow into a deep understanding and love. Another plotline could involve how they deal with the wizarding world's reaction to their union, as it's quite an unexpected pairing. Some might oppose it, while others might see it as a new beginning for the wizarding community.
One common theme is redemption. Malfoy, especially, is often a character who is explored in terms of his potential for redemption. He may have been on the wrong side during the main series, but in fanfiction, he can find a way to make up for his past mistakes. Another theme is the exploration of the dark side. Rabastan Lestrange was a Death Eater, and fanfictions may delve into his motives and the allure of the dark magic he practiced.
One common theme is redemption. Since Rabastan is often portrayed as a Death Eater, many fanfictions explore his journey towards redemption through his relationship. Another theme is the exploration of the dark side of the wizarding world. His character is associated with the dark arts, so the fanfictions often dive into that aspect.
Perhaps a plotline where Harry discovers the truth about his parentage later in life. He has been raised believing Bellatrix is his mother, but then uncovers evidence that it's all a complex web of dark magic and deception. This could lead to a journey of self - discovery as he tries to figure out who he really is and where he belongs in the wizarding world, all while dealing with the stigma of being associated with Bellatrix Lestrange.