The plot would change drastically. For starters, the whole Voldemort situation would be different. Harry might not be the 'Chosen One' in the same sense, as his upbringing by Slytherin could lead him down a different path. He might not have the same motivation to fight Voldemort.
The relationships in the story would be completely remade. Harry's connection to the Dursleys would be non - existent. Instead, he'd be in a world of pure - blood Slytherin ideology. This would mean he'd interact with different characters. He might not even go to Hogwarts as we know it, but rather be trained in a more Slytherin - centric way. The Sorting Hat might not play a role at all in his life. The prophecy might not even apply to him, since his upbringing has deviated so much from the original story.
In the original series, Harry was a symbol of hope for the wizarding world against Voldemort. But if raised by Slytherin in fanfiction, he could be a source of conflict. His values would be shaped by Slytherin's ideas, which could include a preference for pure - bloods. This would put him at odds with many characters. The whole structure of Hogwarts houses might seem less important to him. He could also have different magical abilities or knowledge due to Slytherin's influence. The final battle against Voldemort might not happen as in the original, or Harry could be on the opposite side, depending on how the author develops the story.
The story would change a great deal. In the original, Harry being in Gryffindor meant he was associated with courage and heroism. In Slytherin in fanfiction, he'd be associated with cunning and ambition. The Sorting Hat's decision to put him in Slytherin would likely be due to some different interpretation of his character traits. Maybe it saw his ambition to defeat Voldemort as more of a Slytherin - like quality. This would also change how the teachers view him. Snape, for example, might be less hostile towards him since they are in the same house.
In this fanfiction scenario, Harry's moral compass could be greatly altered. Salazar Slytherin had different values compared to the more modern wizarding world. Harry might grow up with a sense of elitism, believing that pure - blood wizards are superior. This could lead to him having conflicts with those who uphold the equality of all wizards, like Dumbledore. His Hogwarts experience would be a struggle between the teachings of Slytherin and the more inclusive values of the school as a whole. He might also have access to ancient Slytherin magic and knowledge that others don't, which could make him a very powerful and controversial figure at Hogwarts.
The encounter might start with a sense of mystery. Harry could be drawn to a hidden part of Hogwarts where he stumbles upon Slytherin. Slytherin would likely be guarded, not knowing who this strange boy is. The author could show the encounter through the use of vivid imagery, like the dimly lit chamber where they meet. Their conversation could revolve around the future of Hogwarts and how Slytherin's ideals have been somewhat misinterpreted over the years.
In this fanfiction concept, the plot would see major alterations. With Flash's influence, Harry might not rely as much on traditional magic for transportation. He could zip around Hogwarts and the wizarding world at high speeds, changing the dynamics of his adventures. His battles against dark wizards would be different too. Instead of long, drawn - out duels, he could quickly close the distance and catch his opponents off - guard. Also, his relationship with Dumbledore might be different as he has this new, unorthodox way of dealing with threats.
The plot could change a great deal. For one, the threat of Voldemort might not be as immediate or known in the same way. Harry could be dealing with different dark forces in America, like some ancient and malevolent American - based dark wizards. His journey to discover his past and his power would likely take different turns as he navigates the American wizarding world.
The plot would change drastically. Harry would not be living with the Dursleys, so there would be no need for him to escape that horrible situation. Voldemort might have a harder time targeting him as his parents would be on high alert. There would be no letter - hunting drama. Also, his relationship with Snape would be different as his father was Snape's rival. His parents could have taught him some advanced magic from a young age, which would make him stand out at Hogwarts in a different way than in the original story.
The story would be unrecognizable. His character would be different, and so would his relationships.
The main difference would be in Harry's character development. In the original, Harry is shaped by the wizarding world's values. But in this fanfiction, he'd be influenced by Beowulf - inspired values. So, his actions and decisions would be more in line with those values, like being more bold and direct in dealing with threats.
In fanfiction, there are often creative interpretations. One way Harry could be related to Salazar Slytherin is if the Sorting Hat, which has a connection to Slytherin, detects a hidden Slytherin trait in Harry that was passed down through some unknown family connection. This could lead to a whole new set of adventures and self - discovery for Harry as he grapples with this unexpected relation to the founder of one of Hogwarts' houses.
Well, one possible plot could be that Harry discovers he is a distant descendant of Salazar Slytherin through some ancient magic or hidden family history. This revelation could make him question his identity as a Gryffindor and his place in the wizarding world. He might then have to face the prejudices of those who see Slytherin as the 'evil' founder, while also trying to understand and come to terms with Slytherin's motives for creating the house.