Captain Reuben Costello is just hours away from facing his execution when the unlikeliest of rescuers storms into his cell. Lady Arianne Dalton needs the assistance of the infamous Black Swan to flee England and all its constraints. He finds himself more than willing to help the fiercely independent Ari in exchange for his freedom. However, when they come to find their fates inextricably tangled in a plot that threatens the very foundations of British society, they are swept away on a chase that puts not only their lives, but their hearts at risk - and neither of them can defy the wild and stormy ride they find upon the Falcon.