A hilarious magical adventure perfect for fans of funny fantasy stories! It's Jack's tenth birthday, and his day isn't going the way he thought it would: he's sprouted wings and can't get down from the ceiling. What's more, he's just discovered that he's a fairy--a real one--with magical powers. He doesn't even have time to get used to the idea, because the world is in grave peril. Why? Because the unicorns have stopped farting. Fact: Rainbows come from unicorn farts. Also a fact: Without rainbows, human happiness drops to dangerous levels. Can Jack and his best friend Charlie persuade the unicorns to parp again and save the world from sadness? Explore more laugh-out-loud adventures in the Jack the Fairy series: * Jack the Fairy: The Night Bigfoot Stole My Pants* Jack the Fairy: The Week the Bad Fairies Escaped Collect all three books for even more magical mayhem!.