This installment in the Jack Reacher series goes back to 1990 to tell a story of one of his Army MP cases, a murder he is ordered to cover up. At the same time, his mother is dying, and he and his brother are finding their own ways of coping. Well written and poignant, it provides a lot of background and insight into Reacher's early life. Helps the reader understand why he is in some ways extremely capable and in others quite helpless.