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 fartsAlso 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?
