Title: Monday with a Mad Genius
Description: 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.
Subjects: Juvenile fiction, Fiction, History, Magic, Brothers and sisters, Curiosity, Time travel, New York Times bestseller, nyt:series_books=2007-03-10, Children's fiction, Leonardo, da vinci, 1452-1519, fiction, Time travel, fiction, Magic, fiction, Brothers and sisters, fiction, Florence (italy), fiction, Siblings, fiction, Italy, history, fiction, Kinderbuch ab 8 Jahren, Mädchen, Junge, Schwester, Bruder, Geschwister, Baumhaus, versteckt, verborgen, Zeitreise, Abenteuer, Leonardo da Vinci, Werkstatt, Meister, Zeichnungen, Apparate, fantastisch, unglaublich, visionär, Flugmaschine, Flugzeug, fliegen, Wunder
Places: Italy, Florence (Italy)
People: Leonardo da Vinci (1452-1519)
Time periods: 1492-1559, 1421-1737