"Never Go Back" is a thriller novel by Lee Child, published in 2013. It is the 18th book in the Jack Reacher series, featuring the iconic character of Jack Reacher, a former military policeman who travels the country to solve mysteries and fight injustice.The novel starts with Reacher making his way back to the headquarters of his old unit, the 110th MP in Virginia. He wants to meet Major Susan Turner, the new commanding officer of the unit, whom he has been talking to on the phone for months. However, when he reaches the headquarters, he finds out that Major Turner has been arrested for a crime she didn't commit. Reacher, being the hero he is, decides to help Turner clear her name and find out the truth.The plot of the novel is gripping and full of twists and turns that keep the reader engaged throughout. The story is narrated in the first person, which allows the reader to get inside Reacher's head and see the world through his eyes. Reacher is an unconventional hero who relies on his instincts, his wits, and his fists to solve problems. He is a man of few words, but his actions speak louder than words.One of the strengths of the novel is its pacing. The story moves at a fast pace, with one action scene leading to the next. There is never a dull moment in the book, and the tension keeps building until the final climax. The author also does an excellent job of creating a sense of urgency and danger, making the reader feel as if they are right there with Reacher, fighting to survive.Another strength of the book is the character development. Reacher is a complex character with a troubled past, and the author does a great job of exploring his psyche and motivations. The relationship between Reacher and Turner is also well-developed, with a subtle romantic tension that adds to the story's overall appeal. The supporting characters are also well-drawn, with each having their own unique quirks and personalities.The novel also touches on themes of loyalty, justice, and redemption. Reacher is fiercely loyal to his friends and will go to great lengths to protect them. He is also a man of justice, and he will not rest until he finds the truth and rights the wrongs. Finally, the novel explores the theme of redemption, as Reacher tries to come to terms with his past mistakes and make amends for them.The only minor weakness of the book is that some of the action scenes can be a bit repetitive. Reacher tends to get into a lot of fights, and after a while, they all start to blend together. However, this is a minor quibble, and it doesn't detract from the overall quality of the novel.In conclusion, "Never Go Back" is a thrilling and well-written novel that will keep readers on the edge of their seats. The author has created a memorable hero in Jack Reacher, and the story is full of action, suspense, and intrigue. The book is a must-read for fans of the thriller genre, and it is a great addition to the Jack Reacher series.