Ride along on a magical adventure to help a mermaid! Are you a Helper like Uni the Unicorn? Uni and the little girl are taking a walk on the beach when they meet a mermaid! The little girl has all sorts of questions, but first, the mermaid needs some help! She wants to know all about the world above the water. Join Uni and the little girl as they help their new mermaid friend go on a grand adventure over hillsides, through magical forests, and even to the Real World! This new line of Helper picture books, based on the New York Times bestseller Uni the Unicorn also includes Reindeer Helper, Tooth Fairy Helper, and Easter Bunny Helper!