There are several non - lemon 'Harry x Voldemort' fanfictions set in the graveyard. You can start by looking on platforms like Archive of Our Own. Search for tags like 'Harry Potter', 'graveyard scene', 'non - adult', and 'Harry x Voldemort'. This way you can find stories that focus on the complex relationship between them without adult content.
There are quite a few plot points that could be explored. For instance, the graveyard could be a place where the magic of the dead has an effect on both Harry and Voldemort. It could make Voldemort more vulnerable in some ways, and Harry could use this to his advantage, not for a fight but to try and change Voldemort. Or perhaps there is a hidden prophecy in the graveyard that only they can uncover together. This would force them to cooperate, at least for a while. Also, the idea of Harry using the knowledge of the graveyard's history (maybe it was once a place of great magic before it became a dark place) to outwit Voldemort. It would be a battle of wits rather than a physical or inappropriate encounter as in lemon fanfiction.
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.
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.
Yes, there are some fanfictions with such a plot. In some of these fanfictions, it might be a very dark and twisted take on the relationship between Voldemort and Harry. It could explore themes of power, control, and the blurring of the line between good and evil. However, it's important to note that these are non - canon interpretations and often deviate significantly from the original story's intended relationships.
One possible plot could be that Harry is influenced by Voldemort's false promises. Maybe Voldemort offers to bring back Harry's parents in exchange for his loyalty. Harry, in a moment of weakness and longing, decides to join him. However, once he realizes Voldemort's true nature of deception and destruction, he has to find a way to break free from this dark alliance.
One possible motive could be to taunt Harry. Voldemort might see it as a way to show his superiority and to get under Harry's skin. It could be a form of psychological warfare.
A frequent theme is the idea of an alternate universe. Writers often create scenarios where the circumstances of their relationship are different from the original books. For example, a world where Voldemort and Harry grow up together or meet under different conditions. Also, the theme of understanding is common. Since they are on opposite sides in the original story, fanfiction might focus on how they come to understand each other's motives and beliefs in a yaoi relationship.
The wizarding world would be in shock. People who once saw Harry as their savior would feel betrayed. The Order of the Phoenix would be in disarray, not knowing whether to try to rescue Harry or consider him an enemy. Hogwarts would also be in turmoil, with students and teachers alike not believing that Harry could turn to the dark side.
If Voldemort kills Harry in the graveyard in fanfic, it would completely change the course of the story. The wizarding world would likely fall into total despair and chaos. Voldemort would have no real opposition left, and his reign of terror would be absolute. Wizards and witches would be living in constant fear, and the values that Harry represented, like love and friendship, would seem to have been defeated.