One interesting plot could be that they use the Time Turner to prevent a major disaster at Hogwarts that was overlooked in the original story. For example, they might stop a dark wizard from infiltrating the school during an important event.
Another plot could involve them using the Time Turner to go back and change the way they first met or interacted. Maybe they become closer friends earlier and this changes the whole dynamic of their relationship with Ron as well. They could start to work on some secret projects together much sooner.
Maybe in the fanfiction, Harry uses the Time - Turner to train with long - dead great wizards. He travels back in time to learn from Merlin himself. Merlin could teach Harry ancient and powerful magic that has been lost over the centuries. This would give Harry an edge in his fight against Voldemort and also expand his understanding of the wizarding world's history.
One plot could be Hermione using the Time - Turner to go back and change Snape's perception of her. Maybe she tries to show him that Gryffindors can be worthy allies. Another could be that Snape discovers Hermione's use of the Time - Turner in a way that wasn't in the original books and they end up working together secretly to stop a new dark threat.
Some fanfictions focus on the consequences of Hermione misusing the Time - Turner. For example, she could accidentally create alternate timelines. In one such story, she goes back to change something small, but it has a ripple effect that completely alters the Hogwarts she knows. It's really fascinating to see how different authors explore the power and potential chaos of the Time - Turner in relation to Hermione.
One interesting story could be where Hermione uses the Time - Turner to go back and prevent a major wizarding war from starting. She might change key events in the past that led to the conflict.
One interesting plot could be that Harry and Hermione travel back in time to change a major event at Hogwarts, like preventing the opening of the Chamber of Secrets. They might use their knowledge from the future to outwit Tom Riddle before he becomes Voldemort.
Another plotline might involve Snape discovering Hermione's use of the Time - Turner and initially being suspicious of her motives. But as they interact more in the altered timeline, they end up forming an unlikely alliance. They could work together to uncover a long - buried secret about Hogwarts that was lost in time.
One interesting plot could be that they go back in time to prevent a certain dark wizard from ever rising to power in the first place. They might use their knowledge of future events to stop key events that led to the wizard's ascension.
Well, one interesting plot could be the use of the time turner to fix a big mistake in Equestria's history. Maybe a character accidentally changes something crucial, and they have to use the time turner to set things right.
One common plotline is Hermione using the Time Turner to go back and change certain events in the wizarding world. For example, she might try to prevent some of the tragedies that occurred during the war. Another is her using it to relive certain moments with her friends, like spending more time with Harry and Ron in their earlier Hogwarts years.
One idea could be that Hermione accidentally travels too far back in time with the Time - Turner and ends up in Severus' student days. She has to navigate Hogwarts without being detected while also trying to figure out how to get back. And Severus stumbles upon her and at first is suspicious but then realizes she's from the future and they start to work together to fix the time - line.