After watching Mostly Ghostly: One Night In Doom House, I was inspired. A born Black Widow, Cammie joins SHIELD, quickly becoming one of their best. She meets May and Coulson's team, soon joining them. Max agrees to join Phears, in exchange for everyone's protection and safety, sacrificing himself and his body to be used as a puppet host. The ex Black Widow is prepared to do anything it'll take to bring Max out of the darkness and save him. Note: My take on what would've happened had Max not got out in time, purely an AU.