What happens in the 'Harry Potter disappears to train' fanfiction?

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.

In fanfiction, if Harry Potter disappears, it could lead to chaos at Hogwarts. His friends like Hermione and Ron would likely be on a desperate search for him. They might suspect the Dark forces at work again, and start investigating all the possible places where Harry could have been taken or hidden.

The setting in which Harry disappears and returns also matters. If it's in the middle of Hogwarts, the school would be in chaos. Teachers would be trying to keep the students calm while secretly searching for Harry. And when he returns, the reactions of different houses - Gryffindor being relieved and proud, Slytherin perhaps being suspicious - could add more layers to the story.

One possibility in this fanfiction is that Naruto's training with the Kyuubi helps him to better understand the nature of chakra itself. He could discover new ways to combine his own chakra with that of the Kyuubi, creating a unique and extremely powerful form of energy. This new form of chakra could give him an edge in future battles against powerful enemies. Also, his time training might be filled with various challenges and trials set by the Kyuubi, which would test his resolve and determination, making him an even stronger ninja in the end.

The wizarding world would become a much darker place. Voldemort would rule with an iron fist. There would be no more 'Boy Who Lived' to give people hope. The streets that were once filled with the joy of magic would be filled with fear. The Ministry of Magic would enforce Voldemort's cruel laws, and any form of dissent would be severely punished.

He might end up in a place where he can't see clearly without his glasses and struggles to find his way. For example, he could be in a dark forest where he stumbles around, trying to figure out where he is and how to get back. Without his glasses, his magical abilities might also be affected in some way, like his spell - casting accuracy.

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 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.

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.

Perhaps Harry is kidnapped by a mysterious and powerful magical being. This being has the ability to make Harry disappear without a trace. His friends then embark on a dangerous quest to find him, facing many magical challenges along the way. They might have to search in hidden and dangerous parts of the wizarding world that they have never been to before.