Y/n accidentally texts the wrong number after getting hurt on patrol that happens to be an Avenger Little Background: Y/n is 16 and lives in an orphanage she got sold to Hydra when she was a baby and she escaped when she was 14 Hydra gave her the super serum when she was at Hydra so now she uses it for good as Shadow (I know how original) Disclaimer: I don't own any MCU characters Has cursing Mentions of abuse Also my first book