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. But when the mission goes awry and a murder case drops (literally) at their feet, Gareth and Gwen race to uncover a plot that threatens not only their lives, but the life of the future King of England himself. Set in a climate of civil war and constantly shifting political alliances, murder, intrigue, and treachery take center stage in The Fourth Horseman, the third Gareth and Gwen medieval mystery.