Osborne, Mary Pope. creator Murdocca, Sal. text New York Random House 2007 1st ed. monographic eng 110 p. ; ill. ; 20 cm. Jack and Annie travel 500 years back in time to Florence, Italy, and spend a day helping Leonardo da Vinci in the hope of learning another secret of happiness. RL: 3.3. by Mary Pope Osborne ; illustrated by Sal Murdocca. "A Merlin Mission." "A Stepping Stone book." da Vinci Leonardo 1452-1519 Juvenile fiction Time travel Juvenile fiction Magic Juvenile fiction Brothers and sisters Juvenile fiction Curiosity Juvenile fiction Florence (Italy) History 1421-1737 Juvenile fiction Italy History 1492-1559 Juvenile fiction Osborne, Mary Pope 9780375837296 http://www.loc.gov/catdir/toc/ ecip0710/2006101209.html http://www.loc.gov/catdir/toc/ ecip0710/2006101209.html 060307 20190501190556.0