Bluebird

Elizabeth Dickens has lived for a long time, playing by the rules of many and of few. Her occupation is a secret, her past is a mystery, and her identity is classified.
At least, it's supposed to be.
Some people knew:people who can't keep secrets. They were erased, either killed or locked away in maximum security facilities.
She was a blackout. That's how she remained a secret during HYDRA's fall.
But there's a new organization eager to take their place.
And they know her very well.
"As you move up in the world, you get mushy. You get soft. You become willing to compromise everything you used to stand for just to put a few more dollars in your pocket. You turn into the greedy, traitorous coward you never dreamed of becoming. That's why I stay in the trenches. To keep my conscience in tact."