"The Enemy" by Lee Child is the eighth novel in the Jack Reacher series, published by Random House Publishing Group in 2009. This paperback book is written in English and spans 496 pages. As a thriller, suspense, and mystery novel, it follows the protagonist Jack Reacher as he navigates dangerous situations and solves crimes. With a compact size of 7.5 x 4.2 x 1.1 inches and weighing 9 ounces, this mass market paperback is a gripping read for fans of the genre.