 The main story begins with a dispute on June 15, 1767 in the villa of Ombrosa, between an adolescent Cosimo and his father, after which Cosimo, who had quarreled with his father because he had refused to eat a snail soup, climbs the trees of the home garden and promise never to come down again.After the quarrel, Cosimo's life take place in the trees; first in the family garden and then in the surrounding woods.Cosimo's life is full of adventures, from friendships with fruit thieves to days spent hunting or reading.