The day the crayons quit

Summary: Poor Duncan just wants to do some colouring. But when he opens his box of crayons, all he finds are letters, each saying the same thing: we quit! Beige is tired of playing second fiddle to Brown, Blue needs a break from colouring all that water, while Pink just wants to be used. Green has no complaints, but Orange and Yellow aren't speaking to each other. What is Duncan to do? (Cover flap)