Not Human {A Captain America Fanfiction}

To the rest of the world it appears as if Tara Carter is desperate to be apart of something bigger than herself. When her "twin" sister Peggy lets her take her place in a new American war effort, everyone believes she did it to let Tara achieve her dreams. But Tara is not who everyone thinks she is. Her entire world turns upside down when she meets Steve Rogers, and embarks on a quest to destroy HYDRA. Soon enough, even she doesn't know who or what she is. All she knows is that she's certainly not human.