What are some interesting plotlines in 'harry goes to the hellmouth fanfiction'?

Well, Harry is obviously one of the main characters. Since it's a fanfiction about him going to the Hellmouth. There might also be characters from the Buffyverse, like Buffy herself. If the story is set in a way that combines the two universes, she could play a significant role in helping Harry navigate the Hellmouth and its dangers.

Perhaps there's a plot where Harry discovers a hidden magical mystery within the walls of Harvard. It could be related to an ancient artifact that has some connection to the wizarding world. He then has to use his magical skills, but also his newfound knowledge from Harvard to solve it.

One interesting plotline could be Harry making new friends at Stonewall who have different magical abilities than those he knew at Hogwarts. This could lead to new adventures and challenges.

One possible plotline could be Harry adjusting to the unique supernatural environment in Sunnydale. He might encounter vampires and other demons that are different from what he's used to in the Harry Potter world. Maybe he forms an unlikely alliance with Buffy and her gang to fight a common, powerful enemy.

One possible plotline could be Harry making new friends at Durmstrang. He might meet students with different magical abilities and cultures compared to Hogwarts. Another could be Harry facing new challenges in the Durmstrang curriculum, which might be more combat - oriented or have different magical theories.

One interesting plotline could be Harry going back in time and preventing certain tragedies from happening in the wizarding world. For example, he might stop the death of his parents. Another could be him using his future knowledge to change the way Hogwarts is run, like improving the curriculum for Defense Against the Dark Arts.

Maybe Harry decides to go rogue because he's tired of the Ministry's interference. He could form his own group of like - minded wizards and witches to fight against the corruption in the wizarding world. This would involve him recruiting friends and allies, and facing many challenges along the way.

One interesting plotline could be that Harry's 'going crazy' is due to a powerful dark magic spell that was secretly cast on him. He starts seeing strange visions and having out - of - control magic surges.

One interesting plotline could be Harry using his modern magic knowledge in Camelot. For example, he might introduce some simple spells that could be useful for daily life in Camelot like a spell for lighting fires easily. Another could be his interactions with the knights of the Round Table. He might learn their code of chivalry and in turn teach them about loyalty in a different way from his own experiences at Hogwarts.

One interesting plotline could be how Hadrian deals with the expectations of the wizarding world differently from Harry. Maybe he uses his knowledge of the future in a more proactive way to change things for the better in Hogwarts, like reforming the House system.