Ryo and the Sky Whale is a popular book that tells the tale of a young boy named Ryo who sneaks out in his grandfather's old biplane to fly around and explore the skies. He finds himself above the clouds where he meets a sky whale flying lower than most. He and the whale become friends and he begins to make more sneaky trips to visit this sky whale. Then one day they encounter sky pirates who capture the whale in a net and plan to kill it later. Ryo tries to save the whale but the pirates strike his plane down, causing the plane as well as himself to be injured. The rest of the story involves Ryo getting the plane repaired, getting his grandfather to trust him with the plane, and finally tracking down the pirates that took his friend in order to stop them from harming anymore. The story is filled with action, heartfelt moments, and a memorable tale for many to enjoy.