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

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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 . . .

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''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