In this type of fanfiction, Snape could simply intimidate Vernon. Snape has an air of mystery and a certain power about him. He might show up at Vernon's doorstep, give Vernon a cold stare, and with his reputation as a powerful wizard, Vernon might be too scared to oppose him. Snape could then just take Harry without much resistance from Vernon.
In these fanfictions, Snape's development can be quite complex. At first, he may see baby Harry as just a reminder of his lost love and his nemesis. However, as he is forced to interact with the baby, he might start to realize that Harry is his own person. This could lead to him becoming more protective. He might also start to question his long - held grudges and become a more empathetic person. He could even start to teach baby Harry small things, which in turn makes him more patient and understanding.
Another theme is the power of love and care. Since it's about baby Harry, there's a focus on how Snape's care for the baby, whether reluctant at first or not, can have a big impact on both of them. It shows that even in a world of magic, basic human emotions like love and care are powerful.
One motivation could be Snape's sense of duty as a teacher. Despite his dislike for Harry in some ways, he still has an obligation to protect the students. So, when he sees Lockhart endangering Harry, he steps in.
Another possibility is that Snape uses his position as a teacher. He might threaten Lockhart with the consequences of harming a student. Given Snape's intimidating presence and his own power within the school, Lockhart would be afraid to cross him. Snape could also call for other teachers to help, making it clear that he won't let Lockhart get away with any harm to Harry.
Well, it could be that Snape has been secretly keeping an eye on Harry all along. In the fanfiction world, he might have developed a new spell or potion specifically designed to counter the effects of Dementors. When he sees Harry in danger, he uses this new creation to save him. For example, he could have a potion that creates a protective shield around Harry, preventing the Dementors from getting close enough to suck out his soul.
Snape's character development in this fanfiction would be quite complex. At first, he might be very hesitant and unsure of how to be a father. But as he spends time with Harry, he'd gradually let down his guard. He'd find himself enjoying the simple joys of seeing Harry learn and grow. His relationship with the other Hogwarts staff might also change. He could become more collaborative as he realizes he needs support in raising Harry. His loyalty would still be there, but it would expand to include his newfound family with Harry. This would completely transform his character from the bitter and vengeful man he was in the original story into a more well - rounded and loving person.
Well, 'The Snape - Harry Family Dynamic' is a fanfiction that stands out. It details Snape's struggle to balance his duties at Hogwarts with raising a baby Harry. He has to make difficult decisions about Harry's upbringing, like what kind of magic to introduce him to first. This fanfic also explores how Harry's presence changes Snape's view of the world and his own place in it.
One interesting story could be where baby Harry is found by Snape instead of Hagrid. Snape, initially reluctant, starts to develop a soft spot for the baby as he realizes Harry is just an innocent child. Another might be a story where baby Harry shows some early magical abilities that Snape is the first to notice, leading to a strange bond between them. And there could also be a fanfiction where in an alternate universe, Snape takes on the role of Harry's protector from a very young age, teaching him magic in secret.