The Fourth Horseman

May 1144. Newly wedded, Gareth and Gwen travel across the border into England on a diplomatic mission with Prince Hywel of Wales. Within moments of their arrival, however, the mission goes awry and a murder case drops (literally) at their feet. Hindered at every turn by a climate of civil war and constantly shifting political alliances, Gareth and Gwen race to solve the murder and expose a plot that threatens not only their lives, but the life of the future king of England himself.