Leonardo: A Return to Florence

Book 4 in the series The Life and Travels of Da Vinci (though they may be enjoyed in any order).

This historically based novel begins with Leonardo traveling from Venice to Florence with his good friend, and traveling companion, Luca Pacioli. The story follows Leonardo as he sets up his new workshop and begins to take on new painting commissions. Leonardo is surprised to be asked by the Florentine government to join Cesare Borgia as a military advisor, and the real adventures begin when he and two of his servants take off across central Italy - investigating fortifications and making recommendations to Borgia. When the violence surrounding Borgia begins to increase, the three men are ready to pack it up and return to Florence!