What was the character's arc in relation to Harry Bosch's story?

Harry Bosch's character arc is one of transformation and growth. At the beginning of the story, he is a cynical and jaded detective who has been thrown out of the LAPD and is now working as a private investigator. He is distant and guarded and is struggling to cope with his own personal demons. As the story progresses, however, he begins to open up to the people around him and begins to form relationships with the people in his life. He also starts to take on more responsibility, both professionally and personally. By the end of the story, he has become a more mature and responsible person, and is better able to handle the pressures of his job and the issues in his personal life. He has become a better person, both professionally and personally, and is able to better serve justice and protect the innocent.