Well, one possibility could be that Harry is forced into a dark situation where he believes making a Horcrux is the only way to save his friends. Maybe Voldemort has captured Hermione and Ron and threatens to kill them unless Harry does something drastic. So, in a moment of desperation, Harry delves into the dark magic of Horcrux - making, but he struggles with the moral implications throughout the story.
It could be Dumbledore. In this fanfiction, Dumbledore might see Harry making a Horcrux as a threat to the wizarding world and tries to stop him at all costs. He could be the main antagonist because he stands in the way of Harry's actions, even if Harry has what he believes are good reasons for making the Horcrux.
If Harry Potter makes a Horcrux in fanfiction, it would be a major departure from his character. Horcruxes are dark magic, and Harry is firmly on the side of good. One consequence could be that he starts to be corrupted by the dark magic within the Horcrux. His friends might turn against him as they see him slipping into darkness. He could also lose his connection to the positive magic that has always defined him, like his ability to use the Patronus charm.
The story would change drastically. Harry's relationships would be different. Hermione and Ron might not be able to trust him anymore. The story would likely take on a darker tone as Harry delved into the world of dark magic. Instead of being the hero fighting against Voldemort's Horcruxes, he would now be a maker of one, blurring the lines between good and evil.
If Harry were to create a Horcrux in fanfiction, it would likely lead to a great corruption of his soul. Horcruxes are dark magic, and the act goes against all that Harry stands for in the original series. He might start to show signs of increased aggression, a detachment from his friends, and a growing attraction to the Dark Arts.
Yes, in some fanfiction, Harry Potter is considered a Horcrux. This concept adds an interesting twist to the original story, exploring different aspects of magic and the connection between Harry and Voldemort.
In this kind of fanfiction, it often shows Ginny's shock and the complex emotions she might have. She might be worried about Harry's fate, as being a Horcrux means he is tied to Voldemort in a very dangerous way. This discovery could lead to her trying to find a way to break the Horcrux connection without harming Harry.
Well, it could be that Dumbledore, in some fanfic versions, figures it out first and then reveals it to Harry. Dumbledore is often portrayed as having a deep understanding of magic. He might have noticed some strange magical patterns or behaviors related to Harry that led him to suspect and then confirm that Harry was a Horcrux. And then he would tell Harry about it, which is how Harry comes to know.
Perhaps his father's old wand. It has a connection to his family and his heritage. Since it's a wand, it already has a certain amount of magical energy, so it could potentially be a suitable vessel for a Horcrux. And it would be a very interesting twist on the concept of a Horcrux as wands are not a typical choice.
One consequence could be that his connection to Voldemort becomes even stronger. This might lead to him being able to sense Voldemort's actions and thoughts more clearly, but also make him more vulnerable to Voldemort's attacks on his mind. Since the Horcrux is a part of Voldemort's soul, it could also start to influence Harry's personality, making him more aggressive or moody at times.