The Spider's Emerald

Mother dead. Father missing. No siblings and a traumatic past. Sounds like your typical everyday start to a superhero story except that Y/N had a past filled with murder. Blood. Revenge and one particular emerald necklace. Her story starts like any other. She gains supernatural abilities, seeks out the people who killed her mom, steals mysterious object, blah blah blah and all that brings us to the present. But they call it the beginning for a reason. One day Y/N gets teleported to America after finding out that Spider-Man was Peter Parker. Monsters from the multiverse have come to Earth 616 and Y/N and Peter need to send them home. But they'll need help. So naturally all they need to do is race to get the monsters home, without dying in the process. Easy peasy. But all the while Y/Ns life is slowly unravelling in the background, making the emerald burn brighter