One way could be through a magical oath. In some fanfictions, Snape might have sworn an oath to protect Hogwarts at all costs, which binds him to the school. Another way is through his love for Lily Potter. Since Hogwarts was a place that was important to her too, his emotional connection to her could translate into a binding to the school. Also, he could be bound by the magic of the place itself. Hogwarts is full of ancient magic, and it might recognize Snape's loyalty and determination, thus binding him to it.
Well, in magic fanfiction, he could be bound by a curse. Maybe a dark wizard tried to harm Hogwarts and Snape sacrificed himself to stop it, but in the process got cursed to be forever tied to the school. He might also be bound by a pact with the founders' magic. Since he was a key figure in Hogwarts' history, the magic of the founders could have decided to keep him there to ensure the school's safety. Additionally, his own guilt over past events could be a form of binding. He feels so responsible for what happened at Hogwarts that he can't leave, as if an invisible force is keeping him there.
Yes, he is. Fanfiction often delves deeper into the idea of Severus Snape's connection to Hogwarts. Since he dedicated his life to the school in different ways in the original story, fanfic creators expand on this. They might write about him being magically bound to Hogwarts, where he can't stray too far from the castle grounds. This could be because of a spell he cast himself, or as a result of some ancient magic related to his role at the school.
In some fanfictions, Severus Snape and Lilly are still friends because time - travel is involved. A character might go back in time and prevent the events that led to their falling out. As a result, they remain friends and their relationship blossoms in a more positive way. Also, there are fanfictions where Lilly has a more forgiving nature. When Snape makes mistakes, she is quick to forgive and they continue to be friends. This is different from the original story where her patience seemed to wear thin over time.
In fanfiction, one reason could be his desire for a fresh start away from the memories at Hogwarts. Maybe he feels he has done all he can there and wants to explore new magical knowledge elsewhere.
He'd likely be less jaded. At Hogwarts, he faced a lot of hardships like being bullied by the Marauders. Without that, he might be more open and less defensive. His social skills could be better as he wouldn't have developed the same level of distrust towards others.
One interpretation could be that it's a form of discipline for his actions in the wizarding world. For example, if we consider his actions towards Harry Potter and other students, some fanfiction writers might use this as a way to show him facing consequences. Another interpretation could be a more comical or satirical take on his serious and often intimidating character, like a way to break down his stern facade.
One possibility could be that Snape grows up in a different magical environment, perhaps in a small, hidden magical community that has its own unique way of teaching magic. He might develop his skills in potion - making and the Dark Arts in a more self - taught or community - guided way. Without the influence of Hogwarts, his relationships would be very different. He may not have the same intense rivalries or unrequited love for Lily Potter.
An interesting plot might be Snape's journey to fully understand what it means to be the heir of Hogwarts. He could start having strange dreams or visions related to the founders of Hogwarts. As he delves deeper, he uncovers secrets about the school's past that not only change his view of Hogwarts but also of himself. This new knowledge could also impact his relationships with the students and other teachers, as he realizes he has a greater responsibility towards the school than he initially thought.
The Hogwarts staff would also be affected. There could be a shift in power dynamics. Maybe some characters who were in his shadow get a chance to shine, while others might struggle to fill the role he played in maintaining a certain level of order and mystery in the school. For example, his departure could make it easier for some to implement new teaching methods, but at the same time, it could also expose weaknesses in the school's security as he was very knowledgeable about the Dark Arts.
Snape would likely become more confident in his place at Hogwarts. As the heir, he has a new - found sense of belonging that could soften his harsh exterior. He might be more open to helping students, especially those who show an interest in the history of Hogwarts.
One way could be through providing protection. Snape might use his position as a Hogwarts professor to keep Hermione safe from other students who are bullying her or from dark wizards lurking around. Lucius, with his wealth and influence, could offer her a safe haven outside of Hogwarts. Another way is through knowledge sharing. Snape could teach Hermione some advanced potions or dark arts defenses, and Lucius could share some of the secrets of the pure - blood wizarding families.