The Welsh Guard Mysteries
**Crouchback is a medieval word derived from cross-back and indicates participation in a crusade**
With Wales fallen irrevocably to England and not knowing whom else they can trust, Catrin and Rhys join forces against the treachery and intrigue rife within the half-built Caernarfon Castle. And when the killer strikes again, this time within the royal court, the pair race to uncover his identity before he touches the king himself–or his infant son.
Crouchback is the first book in The Welsh Guard Mysteries.