Billy Sure Kid Entrepreneur and the Invisible Inventor (Billy Sure Kid Entrepreneur Series #8)

Billy Sure, inventor and CEO of Sure Things, Inc., is in a race to finish his invisibility spray before another inventor gets all the glory in the eighth book of a hilarious middle grade series!

Everyone is talking about Billy Sure, the boy genius and millionaire inventor whose inventions have become instant hits. From the All Ball that turns into any sports ball to his hovercraft, Sure Things, Inc. can do no wrong! Now Billy wants to help other kids achieve their inventing dreams, so he sol...