Arthur McKay was a somewhat prosperous merchant in his native town of Edinburgh. He choose to leave as his political and religious leanings have recently become unfashionable and potentially fatal. McKay takes his politics and religion seriously, but has wonderfully flexible morals on just about every other subject. McKay was captured by the Player Characters while sailing as a passenger on the Isabella. He struck a deal to provide a safe berth, once he sets up in Port Royal, for the pirates, and to ocassionally have jobs for them, in which they will get 1/4 share of any profits.