Perhaps the bloody fingerprints are a sign of a dark ritual. In the Twilight fanfic, it could be that a group of vampires or some other supernatural beings are performing a ritual that requires blood. The fingerprints are left accidentally during the process. And this ritual has the potential to disrupt the balance between vampires, werewolves, and humans in Forks, so the main characters have to stop it.
Edward could also be the main character. He has his vampire senses which could help him analyze the bloody fingerprints in ways humans can't. He might be on a mission to protect Bella and the rest of his family from whatever danger the fingerprints signify. Maybe he suspects that it's a new threat from a nomadic vampire group and he has to use his skills to track them down.
One way to remove fingerprints from comic books is to use a mild cleaner specifically designed for delicate surfaces. Spray a small amount on a cloth and then gently rub the affected area. Make sure to test it on a small, inconspicuous part first to ensure it doesn't cause any damage.
Yes, Twilight was originally a fanfic. Stephenie Meyer was inspired by a dream and then wrote it as a fanfic. Later, it was developed into a full - fledged novel series which became extremely popular.
Twilight is not a fanfic. It was developed independently by Meyer and became a highly popular series. The story, characters, and plot are all original creations of the author.