Now she was amused; that he had the same amount of charm that she would mostly speak, at normal standards. Tilting her head up at his directness, Vivienne perched an eyebrow at his words; not in an annoyed fashion, but with a bit of curiousity. What else can this 'William' say? She was somehow eager to find out how far his determination can go, and with this 'promise', the pirate was just on the right track to find out. 

With this deal, she finally made eye contact with him, after a moment of thought. What she really was worried about, was Vane. His current reputation as a captain was dropping, while currently staying in the taverns of Nassau, drinking away and having 'company'. She could only roll her eyes at the thought. Would Vane accept new crew mates at this time? Maybe he won't know by the time this rescue was completed; it could work. "William, my name is Vivienne Black", she introduced herself in a soft yet respectful manner, feeling comfortable with calling him by his first name. "This task will not be easy, therefore you will listen to me at all times. In return, you, and Miss Abigail, will walk away safely, with Captain Low's head on a sword. Deal?", the brunette reached out her hand through the bars, waiting patiently for him to seal it.