Life is a box of crayons, literally, in this city. After Ben goes to sleep, his crayons come alive and return through the rainbow door to Color City. They have been followed, or at least Yellow has been followed, by an unfinished drawing of King and his sidekick. The twosome just want color, but the crayons don’t understand.

When King goes to the mountain of the rainbow river and stops the stream from flowing, it causes the crayons to fade in color. So Blue, Red, Green, White and Black, along with Yellow, go on an adventure to stop the unfinished drawings from stealing their color.

This is a terrific story with magical qualities, not only about the world of crayons but also about facing your fears, that everyone has a purpose, and that you should not judge someone because of the way they look.