A really cool plot idea could be that they find a lost magical artifact that has the power to change the future of the wizarding world. But it's cursed and they have to figure out how to break the curse. They journey across different magical locations, meet various magical creatures, and use their combined skills to solve the mystery. This kind of adventure - based plot would be exciting and suitable for all audiences.
One idea could be that they find a hidden passage in the broom closet that leads to a secret part of Hogwarts, like an old library or a room full of forgotten magical artifacts. They then have to figure out how to use these artifacts to help them in their fight against Voldemort. Another could be that they get locked in the broom closet by a spell gone wrong, and while they're in there, they find a diary that reveals some long - forgotten secrets about Hogwarts founders.
One idea could be that Snape discovers Hermione has a rare magical ability that he's secretly been researching. He takes her on as an apprentice of sorts, much to the surprise of everyone. This could lead to a series of adventures where they explore the depths of this magic together and Snape slowly starts to see Hermione in a new light.
One idea could be that Harry becomes a Defense Against the Dark Arts professor. He could teach students unique spells and techniques he learned from his own adventures. For example, he might introduce a class on how to combat dementors using the Patronus charm in more advanced ways. Another plot could involve Harry dealing with a student who has a connection to Voldemort, just as he did, and he has to guide the student to the right path. He could also face challenges from the school board who are skeptical of his teaching methods because of his unorthodox background.
One idea could be that Harry and Hermione get married and have a family in a world where Voldemort was defeated much earlier. Their children could inherit both their magical abilities and intelligence, and they might face new threats to the wizarding world that require their combined skills to overcome.
One idea could be that Harry becomes a Defense Against the Dark Arts professor. He could use his real - life experiences to teach students in a more practical way. For example, he might take students on field trips to places where dark magic has occurred and show them how to detect and counter it. Another plot could involve Harry teaching a new subject, like Muggle Studies from a wizard's perspective, sharing his insights on the Muggle world he grew up in. He could also face challenges from some traditionalist professors who don't approve of his unorthodox teaching methods.
One idea could be a story where the professor discovers a long - lost magic within Harry that even Dumbledore was unaware of. This could lead to special training sessions between them, away from the prying eyes of other Hogwarts staff and students.
One idea could be a story where Draco and Hermione are paired up for a magical research project at Hogwarts. They start off as reluctant partners but gradually learn to respect each other's intelligence and skills. As they work together, they discover a hidden mystery within the school that they have to solve together. This plot focuses on their growth as individuals and their relationship development in a positive and non - inappropriate way.
A plot twist could be that the bath they are in is actually a portal to another dimension. They find themselves in a strange, magical world while still in the bath. So they have to figure out how to get back home while also dealing with the new and odd things in this other world. This would focus more on the adventure aspect rather than anything improper.
One plot idea could be that Hermione gets angry at Snape for unfairly deducting points from Gryffindor. She confronts him in his office and they end up having a heated debate about fairness in the Hogwarts system. Another could be that Snape discovers Hermione is working on a dangerous magic experiment without proper authorization and she gets angry when he tries to stop her. A third idea is that Hermione overhears Snape making some snide remarks about her Muggle - born status and she angrily challenges his old - fashioned views.
One idea could be Harry starting a magical gardening project at Hogwarts. He could be growing all sorts of magical plants and using them for potion - making and to beautify the school grounds. It would be a fun and positive story.