Often, there is a theme of redemption. Despite his dark parentage, the fanfiction might explore Harry's journey to break free from the evil influence and choose the side of good. Also, themes of secrecy and discovery are common, as he discovers his true parentage and has to keep it a secret from others.
One common theme might be identity crisis. Harry would be conflicted about his dark heritage and his place in the wizarding world. Another could be power struggle, as he may inherit some of Voldemort's power.
One common theme is the struggle between good and evil within Harry. Since he has Voldemort's blood, he may have an inner battle over his dark tendencies. Another theme could be identity crisis. Harry would be constantly questioning who he really is.
One common theme is the exploration of power dynamics. Given that both Voldemort and Bellatrix are powerful in the 'Harry Potter' universe, fanfictions might focus on how their relationship is influenced by who has more power at different times. Another theme could be the idea of loyalty being misinterpreted as love, especially in Bellatrix's case as she is extremely loyal to Voldemort.
The main themes often revolve around self - discovery. Harry has grown up believing one thing about his parents, and now he has to re - evaluate everything. There's also the theme of destiny. If he is Voldemort's son, does that change his destiny? Is he still the 'Chosen One'? And family is a theme too. What does it mean to have Voldemort as a father? How does that change his understanding of family, especially compared to the Weasleys and his friends who have been like family to him? All these themes are explored to create complex and engaging fanfiction stories.
One main theme is identity. Harry would have to grapple with his new identity as Voldemort's son instead of the son of James and Lily. Another theme could be redemption. Maybe there's a chance for Voldemort to be redeemed through his connection to Harry. And there's also the theme of power, as Harry might inherit some of Voldemort's dark magic and have to decide what to do with it.
One common theme is the struggle for identity. When Harry is Voldemort's possession, he often has to fight to retain his sense of self. Another theme is power imbalance. Voldemort is extremely powerful, and Harry's new position as his possession creates a huge power gap that the story often explores.
One common theme is identity crisis. Harry would be constantly questioning who he really is. Another is the power struggle. Since he's related to Voldemort, he might have access to more power but also has to fight against the dark side of it.
Well, identity is a huge one. Harry has to reevaluate everything he thought he knew about himself. There's also the theme of power. Since Voldemort was so powerful, questions might arise about Harry's latent powers. Also, themes of love and hate get muddled. Harry might question if he's capable of the same kind of hate as Voldemort, or if there's a different kind of love within his family that he's yet to discover. This makes for some very complex and interesting stories.
One common theme is loyalty. Bellatrix is extremely loyal to Voldemort in the original series, and this is often explored more deeply in fanfiction. For example, stories might show her unwavering commitment to him even in the face of great danger.
A prevalent theme is the dark nature of their relationship. It's often depicted as being based on a mutual love for the dark arts and a desire for domination. In some fanfictions, there's also the theme of obsession. Bellatrix's obsession with Voldemort is a central part, like in the fanfiction 'The Darkest Devotion' where her every action is centered around pleasing and serving Voldemort. And of course, the theme of fear also plays a role, as many characters in the wizarding world fear their combined might.
The theme of the dark side of magic can also be prevalent. Since both are dark wizards, fanfictions may explore their use of dark magic together. It could include their experiments with curses, or how they plan to use dark magic to achieve their goals, like taking over the wizarding world. Their relationship might be intertwined with their shared love for the most dangerous and forbidden forms of magic.