The Dolphin Caller - Rigby PM Collection - Leveled Reader,Levels 29-30 Author:Don Campbell, Meredith Thomas (Illustrator) While camped on Pelican Island for a fishing weekend, Ricky's grandfather tells a story about a dolphin and two boys from an aboriginal tribe that visited the island long ago. When his grandfather's life is in danger, Ricky recalls the ancient tale. But stories can't come true, can they?