Everyone's watching. Nobody sees. Ruby is a vlogger, a rising star of YouTube and a heroine to millions of teenage girls. And Ruby is missing . . . But adults go missing every day and most turn up - sooner or later. Then the video's uploaded . . . Ruby, in the dirt, pleading for her life. What started out as a missing persons case soon escalates into a media frenzy. Detective Inspector Kate Riley, the Met's rising star, is the head of a new elite team of investigators, which includes Detective Sergeant Zain Harris, the poster boy for multiracial policing. As they dig deeper into Ruby's disappearance, they soon realise that the world of social media is much darker than anyone could have imagined. And the videos keep coming . . . 'A chillingly authentic, bang-on-trend thriller - one you'd be a fool to miss.' Lisa Hall, #1 Bestselling author of Between You and Me