Another truth could be related to the wizarding world's history. Harry might learn that there are secrets about the founding of Hogwarts that have been kept from him. For example, he could discover that one of the founders had a connection to a powerful magical artifact that is now lost. This knowledge would change his perspective on the school he loves and his place in the wizarding world.
It could be Hermione. She is always so smart and observant. She might have stumbled upon some hidden information and decided it was time for Harry to know the truth.
Perhaps Harry discovers that Snape had a much deeper connection to his mother than he initially thought. Snape's love for Lily Potter could be explored in more detail, showing that his actions towards Harry were influenced by his feelings for Lily. This could involve Snape secretly protecting Harry in ways that were not obvious in the original story.
Well, in such a fanfiction, Harry might learn some hidden secrets about his family. Maybe he discovers some long - lost relatives or some dark secrets about his parents that were previously unknown.
Maybe Harry Potter uses a magical device to learn advanced spells. For example, he discovers a time - turning quill that allows him to study ancient magic more efficiently.
In 'Harry Potter Learns Voodoo' fanfiction, perhaps Harry would learn voodoo from a mysterious character who has some connection to the wizarding world. He could then combine voodoo spells with his own Hogwarts - taught magic. For example, using a voodoo charm to enhance his invisibility cloak's power. This would open up a whole new set of adventures and challenges for him as he tries to master this new form of magic while still dealing with the regular threats in the wizarding world.
He could lose his friends. In the original story, his friends stand for good and oppose black magic. If Harry starts learning it, they might turn their backs on him. Also, he could be ostracized by the wizarding community. The wizarding world has a clear stance against black magic, and Harry would become an outcast.
In some fanfictions, Harry might learn family magic that has to do with time manipulation. His family could have had a special talent for seeing into the past or future. As he delves into this magic, he has to learn to control it carefully, as misusing time - related magic can have serious consequences. He may use this new - found magic to prevent certain disasters or to gain knowledge from the past that could change the course of the wizarding world.
He could be shocked at first. Imagine finding out that your whole life has been based on half - truths. He might need some time alone to process it all.
Well, maybe Harry Potter discovers an ancient magic that has ties to kung fu. He could start learning from a mysterious wizard who has mastered both magic and kung fu skills. He'd use his newfound kung fu moves along with his magic in battles against dark wizards.
In such a fanfiction, Harry might discover ancient spells that give him an edge in battles. For example, he could learn old defensive magic that can protect Hogwarts in a more powerful way than the existing spells. He might also use old magic to communicate with long - lost magical creatures that hold secrets of the wizarding world.