The plot could center around Severus and Harry's relationship as they go to the ruins. They could start off not trusting each other much, but as they explore the ruins, they begin to understand each other better. There might be some mystery in the ruins that they need to solve together, which forces them to cooperate and in the process, their relationship evolves.
The main characters are clearly Severus and Harry. Severus is a complex character, often portrayed as brooding and mysterious, with a deep knowledge of magic. Harry, on the other hand, is the hero of the main Harry Potter series, known for his bravery and his connection to Voldemort.
Hermione is often a popular character. She can play the role of the mediator or the one who tries to figure out what's really going on between Harry and Severus. For example, she might notice the strange new dynamic between them and try to use her intelligence to uncover the truth.
Perhaps in this fanfiction, Harry is actually a pet in a magical, alternate reality where Severus is a powerful wizard with a penchant for collecting unique magical creatures. Harry, in his pet form, might hold some sort of special power or significance that Severus is eager to uncover. This could lead to adventures as Severus tries to unlock the secrets within Harry while also keeping him safe from other dark wizards who might want to steal Harry for their own purposes.
One possibility is that Harry discovers some dark secret about Severus that makes him feel he can no longer stay in the same place as him. For example, if he finds out Severus had a hand in some past event that endangered his friends. So he decides to leave to protect himself and those he cares about.
Maybe there's a magical spell gone wrong that links their fates to the Panthers. So they have to work together to figure out how to break the spell. Along the way, they realize they both have a deep passion for the team. They start to respect each other more as they deal with the magical and Muggle aspects related to the Panthers.
One possible plotline could be that Harry and Severus go back in time to prevent certain tragedies from happening in the wizarding world. For example, they might try to stop Voldemort's rise to power much earlier. Another could be that they go back to change their own relationship. Maybe in the original timeline they were enemies, but now they have a chance to become allies or even friends.
One common theme is the struggle between light and dark. Harry, as a vampire, often has to grapple with his new, darker nature while Severus represents the more complex side of the magical world. Their relationship becomes a battleground for these opposing forces.
The theme of self - discovery is also present. Harry may discover new aspects of himself through his relationship with Severus. And Severus, as a vampire, might be on a journey of self - acceptance. These fanfictions often show how their relationship helps them both grow as characters and understand themselves better.
One common theme is power dynamics. Given that Tom is often associated with a thirst for power, and Lucius also has his own sense of power within the wizarding world, and Severus has his own influence in different ways, and of course Harry is the Boy Who Lived with his own power. How they balance, compete, or share power among themselves is often explored.
Perhaps in the fanfiction, a powerful magical artifact forces Harry and Severus to conceive a baby as part of a prophecy. They initially resist but gradually come to accept it. The plot might involve their journey to protect the baby from dark forces who want to use the baby's unique heritage for evil purposes. They have to put aside their differences and work together as parents.