Super Short Summary

What She Knew by Gilly Macmillan follows the tense, nine-day investigation of the disappearance of eight-year-old Ben Finch in contemporary Bristol. The novel alternates between the perspectives of Ben’s frantic mother, Rachel Jenner, and Det. Jim Clemo, who leads the search. As the investigation progresses, media scrutiny exacerbates Rachel's turmoil, while Jim grapples with personal demons. Topics of child abduction and mental health struggles are present.