Galloping glitter! A unicorn has landed in YOUR book --now available as a board book! An engaging new adventure from the team that brought you the bestselling There's a Monster in Your Book and its companions. Unicorns love to sing, but this unicorn isn't singing because a worry gremlin has crept in! Help unicorn by using your finger wand and listening to its worries in this interactive book with an important social-emotional message about expressing your emotions. For more read-aloud fun in the Who's In Your Book series, look for these: There's a Dragon in Your Book There's an Elf in Your Book There's an Alien in Your Book There's a Superhero in Your Book There's a Witch in Your Book Tom Fletcher is one of Britain's bestselling children's authors (in addition to being a rock star!), and his YouTube videos have been viewed tens of millions of times.