When fourteen-year-old Mattie Sullivan?asks Spenser to look into her mother's murder, he's not completely convinced by her claim that the police investigation four years ago was botched. Mattie is gruff, street-smart, and wise beyond her years, left to care for her younger siblings and an alcoholic grandmother in a dilapidated apartment in South Boston. ?But her need for closure and her determination to make things right hit Spenser where he lives-...