Serious stuff, brilliantly presented The TimesViolence can be a soft knock on the door in daylight, a knock that brings the worst possible news. Waiting for that knock will change your life forever.DI Marnie Rome knows what pain is. She lost her family to violence. So when a series of vicious vigilante attacks grips the icy streets of London, she recognises its base emotions: rage, and the need for silent, personal revenge.Then, just as her own family home is ransacked, a young boy disappears from the streets and Marnie is desperate to find him. What she doesn tknow is that every act is leading her, step by step, back to those terrible events of her past. The most poignant entry in her series so far Sunday Express s arah Hilary writes beautifully and unflinchingly Peter James It s dark, it s brilliant, and it tightens like a noose Mick Herron