One possible plot could be that Harry has a magical pet, perhaps a phoenix or a very intelligent owl. This pet discovers a hidden weakness of Voldemort. Harry, with the help of his pet's discovery, manages to defeat Voldemort in a final showdown. For example, the pet might find a magical artifact that can nullify Voldemort's dark magic, and Harry uses it to his advantage.
The pet could be a key factor in changing Harry's perspective. If it's a friendly and wise pet, it might give Harry new insights into Voldemort's motives, making Harry more determined to end him. For instance, if the pet was a magical cat that could communicate with Harry telepathically, it could share some deep secrets about Voldemort's past that fuel Harry's fight.
After Harry kills Voldemort in the graveyard in the fanfiction, the magical balance might shift. With Voldemort gone, some of the dark magic that was prevalent might start to fade away. The Hogwarts School of Witchcraft and Wizardry could see a new golden age. New spells and magical theories might be explored as the fear of Voldemort no longer holds back the wizarding scholars. Harry himself might start to travel around the world to spread the news of Voldemort's defeat and also to learn more about different types of magic. His friends would also have new opportunities, like Hermione might be able to further her studies without the constant threat of Voldemort and Ron could finally relax and enjoy a more peaceful life at the Burrow.
The wizarding world would likely be in a state of shock and then celebration. People would start to see Azkaban in a new light, perhaps no longer as just a place of horror but also as the site where the great evil was finally vanquished.
Maybe Harry uses some powerful and unexpected spells. For example, he could combine the Patronus Charm with a blasting spell. The Patronus might distract Voldemort while the blasting spell hits him hard.
Yes, there might be such fanfictions out there. Fanfiction writers often explore alternative storylines, and the idea of Pettigrew turning on Voldemort and killing him is an interesting and unexpected twist. It could involve Pettigrew having a change of heart due to some complex reasons, like realizing the true evil of Voldemort's ways or having a personal vendetta against him that overrides his loyalty.
Well, it depends on the specific fanfiction. There are countless fanfictions out there with all sorts of strange ideas. Some might indeed make Voldemort Harry's pet, perhaps through some sort of magic gone wrong or a very different interpretation of the characters' relationships. It's a way for fans to explore different aspects of the story in a non - canon way.
Well, in some fanfictions, Harry might use some hidden magic he discovers in Azkaban. Maybe he finds a way to turn the Dementors' power against Voldemort. Since Dementors can suck out a person's soul, Harry could somehow direct them towards Voldemort, weakening him enough to deliver the final blow.
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.
It's possible that there's a hidden stash of Muggle items in Hogwarts, and Harry stumbles upon it. He discovers the gun there, realizes it could be a powerful weapon against Voldemort, and decides to use it.