The Shadow [a marvel fanfiction]

Coward. Freak. Killer. Marie Devnner has never known a life out of the shadows; out of hiding. But a one-off encounter with a mugger threw her into the spotlight and into the path of a certain billionaire philanthropist and an observant redhead. With a hazy past and powers that S.H.I.E.L.D. is dying to get its hands...