A hilarious story in the 9-million-copy best-selling classic series from highly regarded author Nick Butterworth!Percy the park keeper has been busy in his workshop for days. As his animal friends try to guess what he is making, Percy suddenly emerges sitting on top of a very strange machine. The animals jump aboard for what turns out to be a very bumpy ride...Includes a surprise fold-out page!Percy and his animal friends have delighted readers around the world for over thirty years!