While Mark lies in bed with a fever, he receives a gift from his uncle, his personal fly box. Dreams and reality merge as Mark opens the box, and a cloud of mayflies flutters out. Naturally curious, Mark follows them to the river that has mysteriously replaced the road in front of his house. There he sees his uncle fishing and joins him. In breathtaking color spreads, Say depicts the ensuing adventure and the catching of a magnificent trout. Mark learns that one must face difficult choices in life. Will he make a prize of the fish, or will he set it free?