Coming Back by Marcia Muller

In Muller's previous book, Locked In, Sharon McCone was shot in the head. In Coming Back, McCone is nearly rehabilitated, yet fearful that she will not be able to go back to work and be the person she used to be. When a friend from physical therapy disappears, she is determined to discover what happened to her. Her husband Hy and her colleagues doubt Sharons' ability to return to the rigors of the investigation. Complicating the investigation is the implication of involvement of national security and other secret agents. An exciting novel.