"The Enemy" by Lee Child is a thrilling novel in the Jack Reacher series published by Random House Publishing Group in 2009. This mass market paperback book has a length of 7.5 inches, a height of 1.1 inches, and a weight of 9 ounces. With 496 pages, this English-language novel falls under the genres of fiction, thrillers, and mystery & detective, captivating readers with its suspenseful plot and engaging storytelling.