In a last-ditch stab at fortune and glory, middle-aged adventurer Bill Conan enters a 30,000-mile single-handed round-the-world race. This ultimate test of skill, strength, and endurance leads him across the treacherous Atlantic Ocean's vast expanse, where a sudden change in wind throws him off balance and sends him overboard. Alone in the still, open sea, he struggles to keep from drowning, knowing it is a fight that he will eventually lose.But Conan has stumbled into the migratory path of a bottle-nosed dolphin named Aka and his tribe. In an exhilarating encounter, he senses Conan's plight, communicates with him, and works to keep him afloat and alive.A stirring adventure tale, Aka depicts the ancient history of dolphins, their extraordinary traits and abilities, and their eternal friendship with humans.