Children's picture book illustration of a scene from an original story about the Winged Monkeys from Frank Baum's Wizard of Oz. The Winged Monkeys are misunderstood pranksters who play a variety of pranks on the various people of Oz. The people of Oz feel they are being unjustly attacked, and attempt to retaliate and punish the monkeys. But the monkeys misunderstand and think the people of Oz are just joining in on the fun. The back and forth continues to escalate until it goes too far. The story arch follows the monkeys and people of Oz as they both learn the difference between fun pranks and mean spirited, harmful acts.
In this scene, the Winged Monkeys laugh after playing a prank on the Winkies (people of Oz whose country is characterized by yellow: yellow tinged skin, yellow clothes and yellowish surroundings) by dumping blue dye into the Winkies' lake on the hottest day of summer.