The perfect introduction to growing and life cycles for young children. A caterpillar hatches from a tiny white egg and munches through the leaves of its bean plant home. It gets bigger and bigger - but what will it turn into next? This beautifully illustrated picture book from award-winning author Martin Jenkins and up-and-coming artist Hannah Tolson is the fourth book in Walker's Science Storybook series, and is the perfect introduction to growing and life cycles for young children.