Lisa Gardner writes crime thrillers built around missing people, violent offenders and investigators whose personal histories often complicate the case. The D.D. Warren series follows a Boston detective through murders, disappearances and family-related crimes, while the FBI Profiler books centre on investigators such as Pierce Quincy and Rainie Conner. Gardner's Frankie Elkin novels shift perspective again, following a woman with no official police role who searches for missing people whose cases have received little attention. Books such as Before She Disappeared and Find Her place survivors and families as close to the centre as the investigators. Gardner's fiction is fast-paced, twist-heavy and procedural without being narrowly police-focused. D.D. Warren is the strongest route into Gardner's police-led crime, while Frankie Elkin offers a less conventional investigator whose work focuses on people who have simply vanished. Read more Less