When two boys from a remote island off the Irish coast venture to the forbidden Island of Horses, they find a beautiful and tame black colt--and trouble with desperate men, but Pat's frail grandmother returns with them to the island to uncover its secrets.
Sixteen-year-old Edward sails with friends from England to the New World in 1632 and joins the colony founded by the Pilgrims at Plymouth, discovering the perils and hardships of colonial life.
Before leaving Inishglass, an island off the coast of Ireland, for school in Galway, Dara and Bran visit their tutor who has moved to a haunted island and has plans to keep the boys on the island forever.