The fanfiction 'Time - Turner: Harry's Redemption' is quite good. Harry uses the Time - Turner to fix his mistakes from the past. He goes back and tries to make amends with those he has wronged, like Draco Malfoy, and in the process, changes the whole dynamic at Hogwarts.
In the fanfiction 'Harry's Time - Turner Escapades', Harry uses the Time - Turner to fix some mistakes in the past. The story is well - written and delves deep into the implications of time - traveling in the Harry Potter universe. It also has some great interactions between Harry and other characters like Dumbledore and Hermione.
I would recommend 'The Time - Turner's Secret Purpose'. Here, Harry discovers a hidden function of the Time - Turner while using it. The plot unfolds as he tries to understand this new aspect and how it can change the future of the wizarding world. It's a complex and engaging story.
In some fanfictions, the Time - Turner might work in a similar way as in the original books. It allows the user to go back in time for a limited period, like a few hours. For example, a character could use it to redo a failed spell or prevent a small accident from happening at Hogwarts.
The consequences can be chaotic. It might lead to altered timelines. People could end up in the wrong era or at the wrong moment in history, changing the course of events in the wizarding world.
Sirius Black could be a trainer. Sirius, being Harry's godfather, would be highly motivated to train Harry. He could use the time - turner to go back to a time when he was at his peak in terms of combat skills and pass on his knowledge to Harry, especially in the areas of dark - wizard fighting and survival skills.
There's a fanfiction where the Time Turner accident causes a time loop. Harry is stuck repeating the same day over and over again. Each time he tries different things to break the loop, and in the process, he discovers new aspects of his friends and the Hogwarts secrets. It's a really unique take on how the Time Turner can go wrong.
The Time Turner can completely change the plot by allowing characters to redo actions. For instance, if a character fails a mission in the original plot, with the Time Turner, they can go back and try again, which might lead to a different outcome for the whole story.
Well, in some fanfictions, the Time Turner is used to go back and change the course of the wizarding wars. This often involves complex plots where characters have to be very careful not to disrupt the entire fabric of time. Some fictions also explore the idea of the Time Turner falling into the wrong hands and the chaos that ensues, like dark wizards using it to gain an unfair advantage in battles.
In certain fanfictions, the contamination of the Time - Turner could be due to improper handling or storage. For example, if it's placed near a powerful magical artifact that emits unstable magic, that magic could seep into the Time - Turner and contaminate it. This could lead to time - related chaos, like creating time loops that were not originally intended or sending people to the wrong time periods. Another possibility is that a character who doesn't fully understand the Time - Turner's mechanics tries to modify it, and in the process, they accidentally contaminate it with their own unskilled magic.
I'm not sure about a specific one off the top of my head, but you can check out fanfiction websites like Archive of Our Own. They have a large collection of Harry Potter fanfictions, and you can search for ones that involve Harry using runes. There are usually tags and reviews to help you find a high - quality one.