Chicago is under attack. And Detective Billy Harney is running out of time to stop a killer who is always one step ahead in this unputdownable new detective thriller from the Sunday Times bestselling author.

Chicago has never needed its police force more.

The mayor and governor have been shot. A killer is targeting police officers. The city is gripped by fear.

Detective Billy Harney and his twin sister Patti come from one of Chicago’s most legendary police families. They know that every crime leaves a trail.

Until now.

As Billy and his Special Operations team race to stop the violence, every investigation points to the wrong suspect. Someone is manipulating the evidence - turning the city’s own justice system against itself.

To catch a killer who is rewriting the rules, Billy will have to rely on the oldest weapon a detective has: instinct.

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PRAISE FOR JAMES PATTERSON

'It's no mystery why James Patterson is the world's most popular thriller writer ... Simply put: nobody does it better.' JEFFERY DEAVER

'No one gets this big without amazing natural storytelling talent - which is what Jim has, in spades.' LEE CHILD

'Patterson boils a scene down to the single, telling detail, the element that defines a character or moves a plot along. It's what fires off the movie projector in the reader's mind.' MICHAEL CONNELLY

'James Patterson is The Boss. End of.' IAN RANKIN

'Patterson knows where our deepest fears are buried ... there's no stopping his imagination' NEW YORK TIMES BOOK REVIEW

'Patterson is in a class by himself' GUARDIAN

'The master storyteller of our times' HILLARY RODHAM CLINTON

'One of the greatest storytellers of all time' PATRICIA CORNWELL

© James Patterson 2027 (P) Penguin Audio 2027