The Island - C. L. Taylor

Welcome to The Island. Where your worst fears are about to come true... It was supposed to be the perfect holiday: a week-long trip for six teenage friends on a remote tropical island. But when their guide dies of a stroke leaving them stranded, the trip of a lifetime turns into a nightmare. Because someone on the island knows each of the group's worst fears. And one by one, they're becoming a reality. Seven days in paradise. A deadly secret. Who will make it off the island alive?