Award-winning author Sally Gardner delivers a whimsical tale about the daughter of a mermaid and an ice cream maker, a mysterious talking tiger, and a challenge as big as the moon. From a magical world of well-dressed animals, talking toads, and bossy princesses comes a timeless story about Mr. Tiger and his troupe of acrobats, and Betsy K. Glory, the daughter of a mermaid and an ice cream maker. Together they must figure out how to turn the moon blue, appease a grumpy giant, and make the best-tasting and rarest ice cream in the world--Gongalong Berry Ice Cream. Told with beautiful one-color illustrations throughout, this modern fairy tale teaches us that happiness is sometimes big enough to solve even the toughest problems.