Bo and the unicorns learn about a mysterious sea dragon during a trip to the beach in this early chapter book from the New York Times bestselling author-illustrator of Owl Diaries!Pick a book. Grow a Reader!This series is part of Scholastic's early chapter book line, Branches, aimed at newly independent readers. With easy-to-read text, high-interest content, fast-paced plots, and illustrations on every page, these books will boost reading confidence and stamina. Branches books help readers grow!In this twelfth book in the USA Today bestselling Unicorn Diaries series, the unicorns are taking a trip to Silver Shell Beach. The mermaids tell Bo and her friends about a mythical sea dragon who is rumored to live there, but no one knows if she really exists. The unicorns make it their mission to discover the truth about the sea dragon -- and meet this magical sea creature! With full-color artwork throughout and plenty of smiles, your young reader won't be able to put this book down!