Squiglet lives alone in a plain white world, but he uses his magic crayons to draw friends. Squiglet uses a straight line to a draw a whistling pig called Curly. Curly is very happy in his straw house once Squiglet has drawn him a bed to sleep in, but then a big wolf turns up and blows his house down. So Squiggle draws Curly a new house, this time made of bricks.