Prince Of Darkness Justin De Quincey Series, Book 4.

The Edgar®-nominated author of the medieval mysteries featuring Justin de Quincy places the Queen's Man far from home-and in the presence of a most cunning foe... Justin de Quincy has been lured to Paris by his nemesis, Prince John, on a mission of mercy. The prince is suspected in a plot to kill his brother, King Richard. Despite John's hunger for the crown, he's unwilling to put himself at risk for regicide-and he wants Justin's help in discre...