One morning, Percy the park keeper steps out of his hut and pins a poster on to the door. As his animal friends gather round, Percy explains that he is planning a treasure hunt. The animals have great fun following Percy's trail of clues all over the park, but when they finally discover the treasure it isn't what anyone was expecting -- least of all Percy! The many stories about Percy and his friends are enjoyed by children all over the world with sales now approaching two million copies. For any child not familiar with Nick Butterworth's series about the perfect park keeper, a treat is in store 'Independent on Sunday'