Daughter of Time by Sarah Woodbury

Time travel to medieval Wales … A medieval man with an uncertain destiny and a modern woman with a troubled past. Only by working together can Llywelyn and Meg navigate the shifting allegiances that threaten the very existence of Wales–and create their own history that defies the laws of time.

Daughter of Time is a prequel to the After Cilmeri Series, and is appropriate for ages 13 and up.