A colorful counting picture book for little adventurers! The colorful rooster wants to explore the wide world and sets off on a journey. Along the way, he meets 2 cats, 3 frogs, 4 turtles, and 5 fish who want to join him. Eager for adventure, they head into the unknown. But as night falls, the cats get hungry, the frogs miss their sleeping spots, and the turtles complain, "It's cold." One by one, they turn back. Only the colorful rooster remains. He makes himself comfortable in his favorite spot and dreams of a journey to the beautiful, wide world. Through this exciting adventure story with vibrant illustrations by Eric Carle, children can playfully and vividly learn about the number range from 1 to 5 with the help of the different animals.