There could be. Fanfic writers often come up with unique concepts. The founders' trains might be used to transport students in a time long before the Hogwarts Express we know. It could be a way to show a different side of the founders' era, with different magical technologies or traditions associated with these trains.
One idea could be a crossover where Train Heartnet, with his unique skills as a sweeper, somehow ends up in the wizarding world of Harry Potter. Maybe he's on a mission to retrieve a magical artifact that has fallen into the wrong hands in Hogwarts. His combat abilities and sharp senses would make for an interesting dynamic in the magical setting.
Well, in such a fanfiction, Harry might disappear to train in some hidden place, away from the prying eyes at Hogwarts. Maybe he goes to a secret location with a powerful wizard who teaches him advanced magic that he couldn't learn at school. This could include dark magic defenses or ancient spells.
Merlin might start by teaching Harry the basics of magic from a different perspective. Maybe he would show Harry how to draw magic from the very essence of nature. For example, instead of using a wand in the traditional way, he could teach Harry to use his hands and the energy around him.
Anubis could train Harry Potter through a series of trials. These trials would test Harry's courage, wisdom, and his ability to face the unknown. For instance, he might be put in situations where he has to make difficult choices regarding life and death. Anubis would also likely teach Harry about the balance between light and dark magic. He would show Harry that there is power in the darker aspects of magic if it is used for the right reasons. This would be a completely new concept for Harry, as Hogwarts mainly focuses on the light side of magic. Through these teachings and trials, Harry would grow into a more powerful and well - rounded wizard.
One popular fanfiction could be where Harry leaves to train in a hidden, ancient magic school in a far - off land. He might learn unique spells and combat techniques that are different from Hogwarts. This could involve training with magical creatures not found in the UK.
In the fanfiction, Darth Revan's training of Harry Potter would be a blend of two different training regimens. Revan would begin with mental training. He would teach Harry to clear his mind, much like a Jedi does, but with a Sith - like focus. This would help Harry control his magic more precisely. Next, he would focus on Harry's combat skills. He would show Harry how to use his wand more like a weapon, not just a tool for casting spells. For instance, using it to block physical attacks as well as magical ones. He would also introduce Harry to the concept of using the environment in combat, like using objects around him to enhance his spells or create distractions. And he would constantly push Harry to his limits, believing that only through extreme challenges can one truly grow in power.
It could be Dumbledore. Even if he's dead in the original story, in fanfiction, anything is possible. He might have left behind some kind of magic that allows him to train Harry from beyond the grave, or he could have faked his death to take Harry to a secret location for training.
Yes, there could be. For example, the plot might revolve around the train being the only way to reach Flamel's hidden lair. The characters would then have to overcome various obstacles on the train to get there.
It could be about a character taking control of the Hogwarts Express for some grand purpose, like using it to transport a secret group of students to a hidden location for special training.