In the 'snape delivers harry's letter' fanfiction, it could be that Snape has ulterior motives for delivering the letter. He might be trying to gain some advantage over Harry or use the situation to further his own ends in the complex power dynamics within Hogwarts. Or it could be a plot to manipulate Harry into a certain course of action that benefits Snape's long - term goals.
Well, in this fanfiction, Snape might be forced by some magical circumstances to deliver Harry's letter. Maybe Dumbledore has a secret plan and Snape is reluctantly following it. It could lead to some interesting interactions between Snape and Harry, perhaps Snape finally shows a bit of kindness that Harry never expected from him.
Maybe Snape has some complex emotions while delivering the letter. He might be secretly hoping Harry won't come to Hogwarts because of his dislike for James Potter, yet he has to follow Dumbledore's instructions.
The letter might be a summons to a secret wizarding council. Harry Snape's journey to deliver it could involve him facing his own inner demons as well as external obstacles. He might have to pass through dangerous terrains and encounter magical beings that are either trying to stop him or help him depending on their own agendas. As he gets closer to his destination, he discovers more about the true nature of the council and his role in the wizarding world.
It could be Voldemort. Even though he doesn't directly appear in the act of letter - delivering, his influence might be hovering over Snape. Snape might be worried that by delivering the letter, he's bringing another potential threat to Voldemort, and Voldemort's shadowy presence could create conflict for Snape.
Dumbledore could be involved. He often has his fingers in many pies at Hogwarts, so he might be the one who arranges for Snape to deliver the letter to Harry for some greater good or part of his grand plan. Another possible character could be Hermione. She might notice something strange about Snape delivering the letter and start to investigate, suspecting that there's more to it than meets the eye.
In the fanfiction, Snape might take Harry because he discovers a connection between Harry and an ancient magic that could be dangerous if misused. So, he takes Harry to a place where he can keep an eye on him and make sure the magic is not exploited by the wrong people.
In a Harry and Snape detention fanfiction, Harry might finally have a chance to understand Snape better. He could see that Snape's strictness is not just pure malice but perhaps a result of his complex past. Snape, on the other hand, could start to see Harry not just as James Potter's son, but as an individual with his own struggles. They might end up having a conversation about magic that neither expected, leading to a newfound respect for each other.
One possibility is that Harry's presence as a kitten would soften Snape's heart. Snape, who has always had a tough exterior, might find himself more vulnerable around this small and helpless creature. Harry, on the other hand, might be able to sense Snape's true nature better in this form and start to trust him more. This could create a bond that is different from their usual relationship in the original story.
Well, in some fanfictions, Snape might start to see Harry in a different light. Maybe he begins to teach Harry some advanced potions techniques secretly during the summer. He could also grudgingly share some of his knowledge about the Dark Arts in a more controlled way, just to make sure Harry is well - equipped to face future threats.
Well, it could be that in the 'Harry and Draco apprentice with Snape' fanfiction, they end up learning a lot about the Dark Arts from Snape, not in an evil way but in a way to defend against them. Harry would be skeptical at first but then realize the importance. Draco might be more eager as he has some knowledge of the Dark Arts from his family. Snape could also teach them how to brew complex potions that are useful in both dueling and healing. There could be some rivalry between Harry and Draco in terms of who can master the skills faster, but also moments of cooperation when they face difficult tasks.
In some fanfictions, Harry might seek Snape's advice on how to deal with the remaining dark magic threats. Since Snape was so knowledgeable, his portrait could offer unique insights.