The passing of great Renaissance master Leonardo da Vinci -- artist, anatomist, engineer, inventor -- marked the end of an era. The world hasn't seen a visionary like him since.... Until now.On a school trip to Florence, three American middle school students think they are in for a treat when a man who claims to be Leonardo da Vinci, brought back to life with a mission to better humankind, crashes their tour. Too bad he isn't really the celebrated Master of the Renaissance ... or is he?Tag along as Max, Tad, and Gina assist Leonardo on his quest, all the while discovering the secrets of his life and teaching the Maestro himself about science, math, history, art, and more! Will anyone ever find out the truth about Leonardo's identity? Will he survive his first airplane ride? Will the students be able to help Leonardo evade the mayor of Florence's selfish grasp so he can complete his quest before his time is up ... again?