Another theme is the discovery of new powers or abilities. Writers often like to expand on the vampire's capabilities in their fanfictions, which can lead to exciting and unexpected story developments. For example, the vampire might discover a power that helps him defeat a long - time enemy or solve a mystery that has been plaguing the world in the story.
Grief is a very common theme. When Peter dies, the other characters have to deal with the loss, and this is often explored in great detail. There's a lot of mourning, and sometimes anger at the situation.
Rebuilding is also a theme. After Percy's death, the world around the characters might be in chaos. So, in many fanfictions, they have to work towards rebuilding what was lost, whether it's a physical place or the sense of hope that Percy once brought.
Another theme is the change in relationships. For example, the relationship between the vampires and the werewolves might shift because of Bella's death. In some fanfictions, they come together in a new way to deal with the aftermath.
One common theme is the grief of his friends and Pokémon. They have to deal with the loss of someone who was so important to them.
One common theme is redemption. Snape's death is often seen as the ultimate act of self - sacrifice that redeems all his past wrongdoings. Another theme is unrequited love, especially his love for Lily Potter which is a strong undercurrent in many such fanfictions.
One common theme is the idea of changing destiny. Since the characters are traveling through time, they often try to change the events that happened in the original Vampire Knight story, for better or for worse.
One common theme is redemption. A character might go back in time to right their past wrongs. Another is love. They could travel back to a time when they lost a loved one and try to save them.
Power and its abuse is also a common theme. Vampires usually have their own set of powers, and when they are thrown into the world of Harry Potter, there can be a temptation to abuse those powers, especially in the midst of the power struggles in the wizarding world. And of course, the theme of redemption. A vampire might be seen as an outcast or a 'bad' character initially, but through their time - traveling adventures in the Potter universe, they might find a way to redeem themselves.
One common theme is self - discovery. When Bonnie travels through time, she often learns more about herself, her powers, and her place in the world. For example, she might realize how strong she really is when faced with challenges in different time periods.
Some fanfictions with Sam's death also touch on the theme of the afterlife. They might explore where Sam goes after he dies, whether it's heaven, hell, or some other supernatural realm. This adds an extra layer of mystery and exploration to the story.