My Favourite Book

My favourite book
My favourite book is "Donnie Brasco",which tells a story about a FBI agent's undercover life.In the story,the agent had to face danger visible and invisible,and bore misunderstandings from his families,friends,even the person who ordered him to do this undercover mission.During the mission,he was nearly killed several times,but he never divulged his true identification.As a result of his long-term undercover detective work,the whole mafia group broke down,the local society regained security.