The conversation between human and AI assistant.
[|Human|] Which popular novel follows the life of the protagonist Siddhartha?
[|AI|] The novel you are referring to is "Siddhartha" written by Hermann Hesse, published in 1922. The book follows the spiritual journey of a young man named Siddhartha during the time of Gautama Buddha.
[|Human|] 
Which popular novel follows the life of the protagonist Siddhartha?