The Death Eaters would also have different character development. They might initially be suspicious of Harry, but as he proves his loyalty to Voldemort, they could start to accept him. Some might even see him as a potential leader in the future. Harry's development might also include changes in his magical abilities. Since he's learning from Voldemort, he could gain new and dark forms of magic. This would change his perception of himself and how others see him. His appearance might even change, becoming more gaunt or having a darker aura, which is a physical manifestation of his internal change.
One important plot point is the change in Harry's relationships. For example, his friendship with Ron and Hermione would be severely strained. Hermione might try to find a way to save Harry from Voldemort's clutches through research, while Ron could be more hot - headed and feel betrayed. Also, Voldemort might use Harry to gain access to certain secrets or artifacts that he couldn't reach before. Maybe the Philosopher's Stone again, or some other powerful magical item hidden in Hogwarts. This would create a whole new set of challenges for the characters in the fanfiction.
It's possible. In the realm of fanfiction, the imagination knows no bounds. Writers might come up with such a scenario for various reasons, perhaps to explore a different side of the characters' relationships. But it's not a common or mainstream concept within the Harry Potter fanfiction community, as it goes against the typical character dynamics we expect from the series.
In many fanfictions, Harry Potter squinting at Voldemort could be a sign of intense focus. It might be that Harry is trying to read Voldemort's next move, or perhaps he's looking for some sign of weakness. For example, in some stories, Harry's squinting could be related to his newfound magical abilities that he's using to analyze Voldemort's magic signature.
He could develop a darker side to his personality. Learning from Voldemort, he may become more ruthless in achieving his goals, even if those goals are still ultimately good. For instance, he might be more willing to use unethical means to defeat other dark wizards. But at the same time, he would also be constantly struggling against this new - found darkness within him. He would be in a battle not just with external enemies but also with his own changing self.
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.
Maybe Harry discovers that Voldemort has a hidden motive for taking him as an apprentice. It could be that Voldemort believes Harry has a power that can be harnessed for a greater, more complex plan that involves not just ruling the wizarding world but changing the very fabric of magic itself. Harry then has to figure out how to either use this to his advantage or stop Voldemort from achieving his goal.
Perhaps Neville Longbottom could take on this role. He has shown great courage throughout the series. His experiences with loss, like the death of his parents, could lead him down a path where he becomes the apprentice of death, using his newfound powers to protect others and bring a new balance to the wizarding world.
The wizarding world might be in shock. People who have always seen Voldemort as the ultimate evil would be confused. They would have to re - evaluate their views on Voldemort. Harry, on the other hand, would be in a very strange situation. He might be distrusted by some of his friends who think he has made a deal with Voldemort.
The relationship would become extremely complex. Harry would be confused and conflicted. He's been taught all his life that Voldemort is pure evil, but now he's been saved by him. Voldemort, on the other hand, might start to see Harry in a different light, perhaps as a tool or as someone with whom he can form an unusual bond. It would be a relationship full of mistrust on Harry's part and manipulative intentions on Voldemort's.