A beautiful white horse gallops through a forest. Is it just a trick of the moonlight, or is that a horn on its head? In this book, you'll read all about unicorns--learn about their history, discover fun facts, and test your knowledge with a quiz! You may know that unicorns have beautiful horns on their foreheads, but do you know what else make them so special? Where do these legendary creatures live? When were they first sighted? And what are your chances of seeing one today?