Calvin Coconut Hero of Hawaii Author:Graham Salisbury Hawaii boy Calvin Coconut has come up with the best idea ever for his sister Darci's birthday party. But a huge tropical storm hits the islands and threatens everything. It rains and rains. And rains. — The river next to Calvin's house rises high. When Calvin's friend Willy falls into the raging water, Calvin grabs his skiff to save him. As Willy... more » is swept into the bay, Calvin struggles in the wild waves. What happens next shows Calvin what heroes are made of.