Another plot could involve a character who is forced to use the Blood Quill and they start to have strange visions. These visions lead them on a journey to find a way to break the dark magic associated with the quill. They might meet some unexpected allies along the way, like a house - elf who has knowledge of forgotten magic that can help.
A more complex plot could center around the Blood Quill being stolen from Umbridge's office. Different factions within Hogwarts, such as the Gryffindors, Slytherins, and even some teachers, suspect each other of the theft. As the investigation unfolds, secrets about the quill's creation and its connection to a much larger dark plot are revealed. This could involve old wizarding families and their long - hidden rivalries.
There might be a fanfiction where the blood quill is stolen from Umbridge and used against her. The story could explore how the tables are turned and she experiences the pain it causes. It could also show how the students who were once victims gain power from this act.
Some fanfictions might explore the origin of the blood quill in more depth. Maybe it was created by an ancient and evil wizarding sect. In these stories, the blood quill isn't just a tool for torture but has a deeper, more sinister backstory. For instance, it could be tied to a dark prophecy or a long - forgotten curse that the main characters have to uncover in order to defeat an emerging threat.
One possible fanfiction could be about Harry's struggle with the Blood Quill in a more in - depth way. Maybe it shows how he copes with the physical and mental pain it causes. He could be trying to find a way to break the magic of the quill without getting caught by Umbridge.
A plotline could be where the Blood Quill is used by a different villain. Suppose a new dark wizard or witch gets hold of the Blood Quill and uses it to torment students at Hogwarts. Harry and his friends then have to find a way to stop this new threat.
Perhaps a fanfic where Lily Potter's spirit is able to communicate with Harry Potter during his difficult times at Hogwarts. She gives him advice and guidance that helps him through his struggles, like dealing with Snape's complex feelings towards him, or facing the challenges of the Triwizard Tournament. This would add an emotional and magical element to Harry's journey.
Another concept could be the origin of the Blood Quill in the fanfic universe. Some fanfics might explore that it was created by an ancient and malevolent wizard, and the quill has a purpose far more sinister than just a writing tool.
A possible plot could involve a long - forgotten blood feud being reignited when a powerful magical artifact related to one of the families is discovered. This could lead to a race between the two families to claim the artifact, with Harry and his friends getting caught in the middle trying to prevent chaos. For example, if the artifact has the power to either destroy or strengthen a family's magic, both sides would be desperate to get it.
One plot idea could be that Crookshanks discovers a hidden passage in Hogwarts that leads to an ancient wizarding library. He then leads Hermione to it, and they find a powerful spellbook that helps them in their fight against the dark forces. Another could be that Crookshanks has a secret ability to communicate with other magical creatures in the Forbidden Forest and he enlists their help to save Harry from a dangerous situation. Maybe he can talk to the centaurs and they come to the rescue when Harry is surrounded by Death Eaters.
One idea could be exploring Bellatrix's backstory before she became a Death Eater. Maybe she had a complex relationship with her family that led her down the dark path. Another could be a story where she has a change of heart, perhaps due to an unexpected encounter with a character like Harry Potter. For example, she could see some of her own past self in Harry and start to question her loyalty to Voldemort.
Maybe a fanfic where the goblins of Gringotts go on strike. Since Harry has some influence with them due to his own vault and his adventures there, he gets involved in the negotiations. Along the way, he uncovers a plot by some Death Eaters who are trying to take advantage of the chaos to steal valuable magical artifacts from the bank. It would be a mix of politics, mystery and action.