THE GRIPPING CAT-AND-MOUSE THRILLER, PERFECT FOR FANS OF MINORITY REPORT AND BLAKE CROUCH 'Will have you on the edge of your seat' SUNDAY EXPRESS 'An mind-blowing speculative techno thriller with a killer twist!' DIANE JEFFREY 'Mind-bendingly cunning' FINANCIAL TIMES _________ All over the world, random people are being brutally assassinated. Each death is unique, but they all have one thing in common: four numbers branded or carved into the victims' flesh. What does it mean? For the brilliant and haunted CIA analyst Quinn Mitchell, it means leaving a safe and predictable desk job as she tries to track down a global serial killer. What she doesn't know is that nothing about this mission - her handlers, the intelligence, even the laws of cause and effect - can be trusted. And her target has saved his most shocking murder for last . . . _________ 'A fast-paced near future thriller that will mess with your head' JAMES OSWALD 'This stunning debut thriller will have you on the edge of your seat' SUNDAY EXPRESS 'A cat-and-mouse, edge-of-your-seat, mind-blowing speculative techno thriller with a killer twist!' DIANE JEFFREY