This book set includes:Innovators in Action: Leonardo da Vinci Gets A Do-Over!Treat yourself to an intriguing story of great discoveries. In Leonardo da Vinci Gets a Do-Over, the Renaissance Master returns to test his genius in the modern world. Too bad he isn't really the celebrated Master of the Renaissance--or is he? Three American middle school students on a school trip to Florence, become his ambassadors to the present. An engaging and inventive way to learn history, math, art, and science!The League of Scientists: Ghost in the WaterIs a ghost haunting the school pool? Sixth-grader John Hawkins feels all alone at school until his interest in robotics lands him an invitation to join four of his classmates in a secret group called The League of Scientists. John and his new friends Malena, Hector, Natsumi and Kimmey, pool their knowledge of biology, technology, logic, and chemistry to unravel mysteries that haunt the quiet town of East Rapids. The League is in a race against time to uncover the secret of the ghost who is terrorizing the middle school swimming pool. Can they expel the ghost in time for their star swimmer to compete against their cross-town rivals? A mystery novel with a side order of the supernatural... or is it science?