The Baron in the Trees (1957) by Italian author Italo Calvino fuses a fictional narrative with questions of philosophy and what it truly means to live a fulfilled life. The story is narrated by the younger brother of Cosimo as he tells the story of how, being bullied by his older sister and tired of his role as a young Baron, Cosmio decided to climb a tree and spend the rest of his life up there. He eventually becomes self-sufficient in the tree, building his own existence up there and changing the lives of everyone he meets during his unconventional existence.