In such a fanfiction, Dumbledore might face consequences for his actions. For example, his manipulative ways could be exposed. Maybe his secrets regarding Harry Potter's upbringing and the true purpose behind his actions could come to light, leading to a loss of his respected status among the wizarding community.
Well, it could be that Dumbledore is held accountable for all the times he put Harry in danger without fully explaining things. He might be publicly shamed in the fanfiction. His actions, which were sometimes ambiguous and self - serving in the eyes of some readers, could finally be judged harshly. For instance, his use of Snape could be seen as unethical and he'd be made to pay for it in the story.
In a 'Dumbledore gets his comeuppance fanfiction', there could be a scenario where his political games within the wizarding world backfire. He has always been a powerful figure pulling strings in the background. But in this fanfiction, his plans could go wrong. His allies could turn against him, perhaps realizing that he has been using them for his own greater good. This could lead to his downfall, with him losing his influence, power, and the admiration of others.
It could be Harry Potter himself. After all, he has been the subject of Dumbledore's schemes for a long time. Harry might finally see through Dumbledore's actions and decide to take a stand against him.
In some fanfictions, Dumbledore is portrayed as having a lot of secrets. If he gets caught, it could be related to his past. Maybe some old enemies find out where he is and catch him. Then he would have to deal with his past coming back to haunt him. His friends might try to rescue him, but it would be a very difficult situation for him, and it could change the whole dynamic of the fanfiction story.
One possibility is that Dumbledore gets caught spying on a group of Death Eaters. This would put him in a very dangerous situation as the Death Eaters are extremely cruel and loyal to Voldemort. He might be tortured for information about the Order of the Phoenix. However, Dumbledore is very resourceful and would probably be able to hold his own against them for a while, giving his allies time to figure out a rescue plan.
The fanfiction could focus on Dumbledore's backstory. Fans might write about his early years at Hogwarts as a student, his friendships, and how he developed into the great wizard he became. It could also include his interactions with other magical creatures in more depth than the original series, such as having secret meetings with centaurs or merpeople to gain wisdom.
In the fanfiction, the Howler could be a warning from an unknown dark force. Dumbledore has been making moves to counter the rising dark magic in the wizarding world. This dark force, not wanting to be thwarted, sends a Howler as a form of intimidation. The Howler could contain veiled threats and references to past events that only Dumbledore would understand.
One possible plot could be that Dumbledore is framed for a crime he didn't commit. Maybe there's a dark wizard who has managed to plant false evidence against him. For example, evidence that he was involved in some sort of dark magic plot. Another could be that the Ministry of Magic, fearing his power and influence, decides to arrest him on false pretenses to gain more control over Hogwarts. This could lead to a lot of chaos in the wizarding world as Dumbledore has many allies and supporters who would not stand for his unjust arrest.
It could be Severus Snape. He has a complex relationship with Dumbledore. Maybe Snape discovers some of Dumbledore's plans that he doesn't agree with regarding Harry Potter. He then sends a Howler in a fit of anger to express his disapproval.
Well, Harry would probably have a very different upbringing. He'd be surrounded by Dumbledore's wisdom all the time. He might learn magic at a much faster pace and gain deeper insights into the wizarding world's history and secrets right from the start. Dumbledore could also protect him more effectively from the dark forces, as he's one of the most powerful wizards. And Harry would grow up in an environment full of magic and knowledge, which would shape him into a different kind of wizard compared to the original story.
Aspiring young writers who are fans of the magical world. They see Dumbledore as a rich character to base their fanfiction on. They could be students who are inspired by the detailed world of Hogwarts and want to contribute their own ideas about Dumbledore through writing.
Well, Merlin might gain new magical abilities after burnishing his staff. It could be that the process unlocks some hidden potential within the staff itself.