The Sable Moon

A headstrong young prince, enslaved far from home, must rescue his imperiled kingdom and those he loves from an ancient dark sorcery in Nancy Springer's magnificent third entry in the Book of Isle

The life of young Prince Trevyn of Isle changes forever on the day a mysterious boy named Gwern is welcomed without question into the family's castle. Stubborn and resentful of the unwanted intrusion, the errant teenage prince abandons his home and soon finds himself both in love and in jeopardy. ...