Perhaps it was because of the power he amassed in the process of defeating Voldemort. In the fanfic world, power can be a very scary thing to those in authority. Harry's new - found and possibly overwhelming power could have made the existing magical power structure feel threatened. So, they arrested him as a way to control and contain that power, rather than seeing him as a hero who saved the wizarding world.
He might have been put on trial. The wizarding court would then decide his fate based on the evidence presented against him. If the court was corrupt or influenced by those who feared Harry's power, he could be wrongly convicted.
One possible plot twist could be that Harry was set up. Maybe there was a powerful dark wizard who wanted to get rid of Harry and framed him for Voldemort's death in a way that made it seem like a cold - blooded murder rather than a heroic act. Another twist could be that the wizarding world has turned against Harry because they fear his power after defeating Voldemort and use this arrest as a way to control him.
At first, Harry would likely be in a state of disbelief. He has just defeated the most evil wizard in history and now he is being treated like a criminal. He might start to question everything he has done. However, as time passes, his Gryffindor courage would kick in. He would begin to gather evidence and allies to fight against this false accusation. He would probably also be a bit resentful towards the wizarding world for not seeing the truth. He would be thinking about all the sacrifices he made during the fight against Voldemort and how ungrateful the wizarding community seems to be.
In some fanfics, there could be a magical creature or spirit that Mundungus has befriended in the past. This creature or spirit, being loyal to him, might try to help him in some way. It could be a house - elf that he once helped, and now the house - elf wants to return the favor. Or it could be a magical bird that can carry messages and tries to find someone to assist Mundungus in his predicament.
The Ministry of Magic could be the ones to betray Harry. They might try to use Harry as a pawn in their political games, and when Harry realizes this, he loses faith in the so - called good side. Voldemort then takes advantage of Harry's disillusionment and convinces him to join.
In this fanfic, Harry might be betrayed by the Order of the Phoenix. They could have made a decision that endangered Harry's life without his knowledge. Feeling used and discarded, Harry runs away. Voldemort, through his Death Eaters, finds Harry and manipulates him. He tells Harry that he can give him a place where he will be respected and not betrayed again. Harry, still young and naive in some ways, falls for Voldemort's lies and joins him, leading to a very different kind of war in the wizarding world.
Here are some recommended novels after defeating the apocalypse:
1. " The Age of the Universe ": This novel depicted the collapse of human civilization and the struggle between the survivors. The protagonist rose again in the apocalyptic world and explored the cruel love and redemption in the apocalypse.
2. [After Doomsday: This novel tells the story of the protagonist's survival and farming experience in the apocalypse, as well as his interactions with other characters.]
3. [Doomsday Mantis]: This novel tells the story of a world that has mutated or evolved due to the Red Mist.
4. " Global Evolution ": This novel depicted the entire world mutating or evolving because of a Red Mist.
5. " I Plant a Field in the Apocalypse ": This novel is set in the apocalypse. The protagonist has a Rubik's Cube space and tells the story of farming life in a happy and relaxed style.
Please note that the novels recommended above are conjectures based on the search results provided. If you need more detailed or accurate recommendations, please refer to other sources or conduct further research.
I'm not sure if there is such a fanfic. Fanfics cover a wide range of themes and scenarios, but this particular one might be quite rare or even violate some of the general guidelines of the Harry Potter fanfic community. Many fanfic platforms have rules against inappropriate or non - canon - compliant content.
There probably is. Fanfic communities are full of unique and unexpected plot ideas. This kind of plot would completely turn the original story on its head. It might involve some sort of alternate reality where Harry and Voldemort have a common goal or where they are forced to work together due to some external threat. It could be a really interesting read for those who like exploring different interpretations of the Harry Potter universe.