The Harvest Festival — Mark Griffin

This story has all the kids searching in Grandpa's spaceship for the missing clouds for the cloud races. The little squirts, Bizby, Slipper and Lazlo are set to race this year but the sky is empty and the festival is coming soon. The soccular (circular soccer ) team, The Rockets is set to play for the championship But are terrified by the opposing team who look huge in a video. Of course there is a happy ending but you will have to read the book.