Morning Girl and her brother, Star Boy, may not get along too well. But when it counts, they stand by each other. Their near-perfect life on a Caribbean island in the 1400s though, is about to change forever. In alternating chapters, siblings Morning Girl and Star Boy take turns telling about their life and family living on a Bahamian island. Children of opposite tastes and temperaments, each can't understand -- and often resents -- the other.
But the ties of blood are strong. Through the crises of life, both large and small, the siblings rely on each other. One passage describes how, "across the space between us, we made a fishing line with our eyes and each pulled the other to the center." Star Boy accidentally sets his father's canoe adrift, and is so ashamed that he tries to turn himself into a rock. Their mother has a miscarriage. The island survives a hurricane, and when the people gather to celebrate, Star Boy is humiliated and Morning Girl defends him.
At the very end, Morning Girl meets a group of strangers. Columbus's journal entry describing that meeting is quoted in an epilogue.