He might use it to buy rare magical artifacts. For example, he could purchase ancient wands or enchanted jewelry that have special powers. This not only adds to his personal collection but also gives him an edge in certain situations.
One interesting way is that he uses his money to start his own magical business. Maybe he opens a shop that sells unique magical items that he discovers during his travels. He can hire employees, promote his products, and contribute to the wizarding economy.
One way is to write reviews. You can express your thoughts on the plot, like if it's a creative new take on the wizarding world or if it stays true to the original spirit of Harry Potter. Another way is to create fan art inspired by the fanfiction. It could be a drawing of a scene or a character from the story you read. Also, you can join online forums to discuss the fanfiction with other fans. Share your favorite parts, debate about the character development, and just have a great time chatting with fellow Potterheads about the fic.
One interesting aspect could be the power and danger it represents. Fiendfyre is a very powerful and uncontrollable dark magic. In fanfiction, seeing Harry Potter use it might show his desperation or a new level of his magical abilities. Maybe he uses it to fight a particularly strong enemy that can't be defeated by normal means.
In the fanfiction, the grimoire might be the key to unlocking Harry's true potential. He could have been holding back in his magic all this time, and the grimoire shows him new ways of thinking about and using magic. It might also introduce him to a new group of magical creatures that he has to team up with to face a common enemy. This would not only expand the magical world in the fanfiction but also give Harry a whole new set of allies and challenges.
One example could be Harry using a magical version of a smartphone to communicate with his friends secretly within Hogwarts. The enchanted device might have spells instead of apps.
One interesting aspect is the exploration of Harry's relationship with his Parselmagic ability. It could show how he struggles to control it or how it sets him apart from others in new ways. Another aspect might be the reactions of his friends and enemies. For example, Ron might be more distrustful at first, while Voldemort could see him as a potential rival in a different sense.
Hermione could be the one. With her vast knowledge of the wizarding laws and her sharp intellect, she might dig up some old regulations that prove Harry's right to his money. She would then fight tooth and nail in the wizarding courts or against the goblins at Gringotts to get his money back.
Dobby sometimes helps Harry Potter in fanfiction by summoning other magical creatures to assist. For example, he could call upon friendly centaurs or house - elves from other families who are sympathetic to Harry's cause. This creates a sort of magical alliance around Harry, which is really cool. Dobby's social network among the magical beings is something that is often explored in interesting ways in fanfiction.
One interesting way is by using his Patronus in a creative manner. In some fanfictions, Harry's Patronus can not only defend against Dementors but also send messages or signals that only he and his allies understand. He could use this to communicate secretly during a time when Snape is monitoring him closely, thus outwitting Snape's attempts to keep him in check.
In the fanfictions, Harry being a kid might involve his reliance on adults for support, his excitement over simple magical discoveries, and his efforts to fit in at Hogwarts while still having that childlike charm and vulnerability.
Well, in this fanfiction, Harry might be a professor because of his extensive knowledge and experience in magic. He could be teaching younger students and sharing his wisdom.