Celebrate thirty years of Percy the Park Keeper and his animal friends with this funny story in the classic series from award-winning author and illustrator Nick Butterworth! Percy the park keeper is planning a treasure hunt. All his animal friends are to follow a trail of clues around the park and the first one to reach the end will find the treasure! The animals are so excited they can't wait for the hunt to begin! Includes a surprise fold-out page! More than 9 million Percy the Park Keeper books sold, worldwide!