One possible plot could be that Harry has a major disagreement with Ravenclaw values. Maybe he feels that Ravenclaw's focus on knowledge and intellect has been misused in some way within the wizarding world. For example, he discovers that some Ravenclaw descendants are using their intelligence to create dark spells under the guise of academic research. This could lead him to publicly disown Ravenclaw as a house, causing a huge uproar in the Hogwarts community.
Perhaps in the fanfic, Harry has a personal experience with a group of Ravenclaw students who bully or exclude others. This could be so extreme that Harry, who has always fought for justice and equality, decides to disown Ravenclaw as a whole. He may feel that the house has strayed from its core values of wisdom and acceptance. This would then set off a series of events where Harry has to deal with the consequences of his actions, like facing the ire of Ravenclaw students and professors, and trying to find a way to make things right without sacrificing his principles.
In a fanfic, Harry might disown Ravenclaw because of a prophecy. Suppose there was a foreseen event that linked Ravenclaw to some great danger. Harry, being the hero, decides that the only way to prevent it is to distance himself from Ravenclaw. He might think that by doing so, he can break the chain of events that lead to the foreseen disaster. However, this would be a very controversial move as it goes against the unity of Hogwarts houses.
It could be a Ravenclaw student who has been misusing their intelligence. They might be creating chaos in the wizarding world, and Harry's disowning of Ravenclaw could be his way of standing up against this misuse. This student could be jealous of Harry's fame and try to undermine him by causing problems that would make Harry take such a drastic step.
I'm not entirely sure as it's a very specific fanfic. It might be about Harry having some sort of conflict regarding Ravenclaw money, perhaps he disowns it for reasons that were foreseen in the fan - created plot. Maybe there are issues like inheritance, or some magical connection to Ravenclaw's wealth that he doesn't want to be part of.
Obviously Harry is one of the main characters since his name is in the title. It's also possible that there could be characters related to Ravenclaw, like Luna Lovegood who could be involved in the story about Ravenclaw money. Maybe there are also some original characters created by the fanfic author to help drive the plot forward regarding this money issue.
I'm not sure specifically as I haven't come across a fanfic with this exact title. It could potentially be about a character named Harry from Ravenclaw house in a fictional world where 'gallons' might be a form of currency or some sort of measurement, and 'foreseen' could imply something predicted. Maybe it's about his departure in a situation related to those elements.
There are several places you could look for this fanfic. First, as mentioned before, Archive of Our Own and FanFiction.net are great resources. Another option is to check any Harry Potter - themed fanfic communities or forums. Sometimes, fans will share links to unique or hard - to - find fanfics in those places. However, keep in mind that not all fanfics are easy to track down, especially if they are relatively new or by an unknown author.
The plot could start with Harry being sorted into Ravenclaw, which surprises everyone. Then he begins to discover the unique aspects of Ravenclaw house. He might get involved in a mystery related to a lost Ravenclaw heirloom. As he tries to solve it, he meets other Ravenclaw students with different areas of expertise, and together they use their collective intelligence to follow the clues.
One great 'Harry Potter Ravenclaw Fanfic' is 'The Ravenclaw's Heir'. It delves into the life of a new Ravenclaw student who discovers a hidden secret about the house. The story is full of mystery and really captures the essence of Ravenclaw's love for knowledge.
Well, perhaps the plot could involve Harry being an outcast in Ravenclaw. His cold demeanor might make it difficult for him to make friends. He could be more focused on academic pursuits, using his intelligence to solve the mysteries around Hogwarts in a more solitary way, without relying on others as much as he did in the original story.
In a Ravenclaw fanfic, Gallons might be part of a complex magical formula or a key to unlocking a Ravenclaw's hidden chamber. In the context of a Harry fanfic, perhaps it's a new discovery that ties into the overall plot of the wizarding world. It could be a currency in a magical economy that only Ravenclaws understand fully, and Harry has to learn about it to solve a problem. This would add an interesting dimension to both types of fanfics.
The fact that Harry is sorted into Ravenclaw could also cause a rift with some of his Gryffindor friends at first. However, as time goes on, they could come to see the benefits of his new House. Harry might introduce some Ravenclaw values like open - mindedness to Gryffindor. And his Ravenclaw housemates could also learn about loyalty and bravery from Harry. This could lead to a more united Hogwarts against Voldemort, with all the Houses working together in new ways.