Harry might use his wits and the environment around him while in captivity. For example, if he's held in a place with magical artifacts, he could use them to his advantage. He could break the chains that bind him with a spell - enhanced object and then make his way to Voldemort and defeat him.
One possibility is that Harry has discovered some long - lost connection between them that he thinks can be exploited. Maybe he's found out that Voldemort has some knowledge or ability that is crucial to solving a problem. For instance, if there's a prophecy that only Voldemort can decipher, Harry might approach him for help, despite their long - standing enmity.
Harry could become more powerful in a way that scares his friends. Voldemort's training might focus on the Dark Arts, which are powerful but dangerous. This could change Harry's magic style. He may become more solitary as his new skills and knowledge set him apart from his Hogwarts friends who follow a more traditional path of magic.
Yes, there are likely fanfics out there with such a wild and unorthodox concept. Fanfic writers often come up with very creative and out - of - the - box ideas, and this is definitely one of them. It goes completely against the established canon of the Harry Potter series, but that's the beauty of fanfiction. It allows for exploring different 'what - if' scenarios.
In this fanfiction, it could be that Voldemort has a premonition. He sees that if Harry Potter dies, it will lead to a series of disasters that will also destroy his own plans. So, in order to preserve the balance or to keep his long - term goals intact, he saves Harry. For example, if Harry's death causes an uncontrollable chaos in the wizarding world, Voldemort's rule over the dark forces might be disrupted. So he steps in to save Harry.
There could be various reasons. Maybe he had mental health problems, or there was a major conflict within the family that pushed him over the edge. Whether it's true or not, it's a disturbing thought.
Honestly, there could be multiple reasons. Maybe it was to protect Harry in the long run or to prevent a greater evil from emerging. It's a mystery that might be revealed as the story unfolds.
Yes, there are some fanfictions out there that might explore the concept of Voldemort's brother. Fanfic writers often come up with creative ideas to expand the 'Harry Potter' universe. Some might imagine what kind of person Voldemort's brother could be, his relationship with Voldemort, and how his existence could have potentially changed the events in the original story.