The Number One New York Times Bestseller! Included in BookTrust's 100 Best Books for Children Debut author Drew Daywalt and international bestseller Oliver Jeffers team up to create a colourful solution to a crayon-based crisis in this playful, imaginative story that will have children laughing and playing with their crayons in a whole new way.

No.1 "New York Times" bestseller from a debut author and an international bestselling illustrator. An imaginative story about a crayon-based crisis and a colourful solution. Ages: 3+.