The evil house would be the rare straight, normal people who somehow become wizards despite almost all wizards being trans
Everything else is the same until the end
Instead of having a time skip for the last chapter of the last book, it talks about the mental hospital Hogwarts and you realize it's all a drug-addled dream of Harriet, projecting her fantasies on the other people / staff there.
Make pretty much all wizards trans
The evil house would be the rare straight, normal people who somehow become wizards despite almost all wizards being trans
Everything else is the same until the end
Instead of having a time skip for the last chapter of the last book, it talks about the mental hospital Hogwarts and you realize it's all a drug-addled dream of Harriet, projecting her fantasies on the other people / staff there.