BBC Sherlock/Inception: Gray and Grey Morality

Fandoms: BBC Sherlock / Inception
Summary: Arthur, Eames, and Ariadne take on a job with a new Extractor, only to find that their mark may be more than they can handle.
Pairing: Established Arthur/Eames
Rated: T
Word Count: Around 9700
Disclaimer: Inception and related characters belong to Christopher Nolan. Sherlock and related characters are credited to ACD, Moffat, and Gatiss.
A/N: Because there need to be more of these. Takes place post-movie and somewhere between Blind Banker and The Great Game.
Warnings: Language, violence, m/m kissing. One OC, only because it felt wrong to bring Cobb in. Sherlock may seem OOC in some parts, but I stand by the characterization.