In this fanfiction setting, Snape might be at Grimmauld Place on some secret mission. Hermione, being the inquisitive witch she is, could stumble upon him. There could be a tense moment at first, but then they realize they need to cooperate. Snape could teach Hermione some advanced magic that she wouldn't learn at Hogwarts, and in return, Hermione could offer her unique perspective on the wizarding world. Their relationship could develop into an unlikely alliance, which would be really exciting to read about.
One possibility is that they are there to retrieve some Dark Arts artifacts hidden in Grimmauld Place. Lucius believes that these artifacts can strengthen their position in Voldemort's ranks. Draco, on the other hand, is starting to question the morality of using such artifacts. As they search, they come across old memories and secrets of the Black family that make Draco wonder if the path his family has chosen is the right one. He might start to see the value in the Order of the Phoenix's fight against the Dark Arts, even if he doesn't fully support them yet.
Well, perhaps Harry is angry because of some injustice he faced at Hogwarts. When he arrives at Grimmauld Place, he might find some secrets about the Order of the Phoenix that further fuel his anger. He could also have an argument with some of the residents there, like Sirius or Mrs. Weasley.
Well, in fanfiction, it could be that when Harry arrives at Grimmauld Place, he discovers new secrets about the Black family. There could be hidden rooms or magical artifacts that are crucial to the fight against Voldemort. Maybe he stumbles upon a diary of one of the Black ancestors that reveals a long - forgotten spell or prophecy.
Well, the plot could involve Harry exploring the secrets of Grimmauld Place on his own. Maybe he discovers hidden rooms filled with old Black family magic items. He might also struggle with feelings of loneliness and isolation, but at the same time, use the solitude to practice his magic without distractions.
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.
Dumbledore might be motivated by his over - arching plan to defeat Voldemort. He could see Hermione as a sacrifice that needs to be made. Maybe he believes that by betraying her, he can gain some crucial information from the enemy that will ultimately lead to Voldemort's downfall.
In some interpretations, one possible crime could be his manipulation of Harry Potter. He knew Harry was a tool to defeat Voldemort from the start and perhaps didn't fully disclose this to Harry, leading Harry into a dangerous life without his full knowledge.
I recommend "The Reborn Pretty Lady in Power", an ancient romance novel. The main character was framed and had his tendons removed. After rebirth, he took revenge. In addition,"Your Highness, the Princess Consort Intends to Draw a Portrait of You" also had a plot where the portrait was erected. This ancient romance novel told the story of the female protagonist working as a government painter to draw the portrait of the male protagonist. I hope you like this fairy's recommendation. Muah ~😗
Well, it could be about Hermione getting caught in the rain while at Grimmauld Place and then having to deal with being soaked. Maybe she has to quickly find a way to dry off and in the process, there are some interesting interactions with the other characters who are also at Grimmauld Place.