The death of Hermione instead of Fred would have far - reaching consequences. For one, the Hogwarts rebuilding process would lack her influence. She was always one to advocate for better education and rights. In the fight against the remaining Death Eaters, the Order of the Phoenix would miss her wisdom. Also, her death could lead to a different kind of story. Instead of a story of victory and hope, it could turn into a darker tale of loss and the struggle to carry on in the face of such a great loss. Her friends would have to find a way to honor her memory while still trying to make the wizarding world a better place.
If Hermione dies instead of Fred, it could change the tone of the fanfiction entirely. It might focus more on grief and the loss of potential. Hermione had so many plans and ideas for a better wizarding world. Without her, the rebuilding after the war could be very different. Also, Ron would be deeply affected. His relationship with Hermione was budding, and her death could send him into a downward spiral. Harry might feel even more alone and responsible, as he often relied on Hermione's advice.
Well, it would be a huge shift. The Golden Trio would be broken. Harry and Ron would be devastated. Hermione's intelligence and problem - solving skills are crucial for their fight against Voldemort. Her death might lead to a more desperate and chaotic situation for the remaining characters. They might lose some of their strategic edge and it could also cause a lot of emotional turmoil for the entire wizarding community who saw Hermione as a symbol of hope for Muggle - borns.
Harry would be crushed. He'd feel like he lost a sister. Ron would be in total despair, probably blaming himself. Ginny would be heartbroken too as Hermione was like a sister to her. The Weasley family, who had accepted Hermione as one of their own, would be in mourning. They'd all wonder how they could have prevented it and would be angry at the unfairness of it all.
Perhaps there's a prophecy involved that foretells either Fred or Hermione's death, and Hermione, in her cleverness, figures out a way to twist it so that she takes Fred's place. The plot might then revolve around the lead - up to this moment, with their relationship growing and changing. We could see flashbacks of their time together at Hogwarts, how they became friends or more than friends. And then, when the moment of sacrifice comes, it's a very emotional and heart - wrenching scene.
I'm not sure if there are many fanfictions specifically with that plot. But you could try searching on big fanfiction platforms like Archive of Our Own. They have a vast collection, and you might be able to find something that comes close to this concept.
If Hermione died instead of Sirius, it would be a huge blow to Harry and Ron. Hermione was the brains behind many of their plans. Without her, they might not be able to figure out how to fight Voldemort as effectively. For example, she was the one who discovered many of the secrets in the library. Also, her friendship was a source of emotional support for Harry, especially when he was dealing with his dark past and the challenges of being the Chosen One.
It could also be that they run away for a more personal reason. Maybe Fred has feelings for Hermione that go against the social norms in the wizarding community. They run away to be together and explore their relationship away from the prying eyes and judgmental attitudes of their friends and family.
Well, it could be a story where there's a big misunderstanding. Maybe Hermione thought Fred was about to play a prank on her that would cause harm to someone, and in her haste to stop him, she accidentally kicks him in the balls. Then it might lead to a whole series of events like Hermione feeling extremely guilty and trying to make it up to Fred while Fred is initially angry but then realizes it was a mistake.
Well, one plot development could be that Hermione is initially shocked but then realizes she has feelings for Fred too. They then have to deal with the reactions of their friends, like Ron being a bit miffed at first. Another could be that Hermione rejects Fred's proposal at first, but as the story progresses, she sees how much he truly loves her and changes her mind.
Fred could use his knowledge of the Weasley family's magic tricks and inventions. He might have some secret gadget or spell that can break through the barriers or spells that are being used to torture Hermione.
One reason could be that they are in a situation where they need to disguise Hermione as Fred for some sort of mission. So she has to wear his clothes to blend in. Another possibility is that it's a symbol of their closeness. After a particular adventure where Fred saved Hermione, she wears his clothes as a sign of gratitude and a growing bond between them.
One implication is that Hermione's family background would be different. Instead of the Muggle - born story we know, she would have a wizarding family connection through Remus. This could change how others perceive her, especially those who are pure - blood supremacists. They might still be prejudiced against Remus as a werewolf, but Hermione would now have a more complex family identity to deal with.