Even more compelling than its predecessors. Hurwitz uses every ounce of his exceptional skill to describe the elaborate plans that exist to protect the most powerful man in the world and how they might be circumvented. Gripping, powerful and only too believable. Don't miss it. (Daily Mail)

Out of the Dark takes the reader on a journey that covers a wide range of emotions from potential love to outright terror. The relentless action and detailed mission planning make the tale both clever and smart. It's only the end of January, but this novel will be remembered as one of the best thrillers of the year (Associated Press)

Out of the Dark is the best thing Gregg Hurwitz has ever written and the kind of game-changing thriller that'll have people talking about it long after turning the final page. (The Real Book Spy)

The perfect thriller (Robert Crais, bestselling author of Cole & Pike series)

A superbly created page-turning action blast (Peterborough Evening Telegraph)

The fourth in a series that has put Hurwitz firmly on the thriller writers' map (Mail on Sunday)

Orphan X blows the doors off most thrillers I've read and catapults the readers on a cat-and-mouse that feels like a missile launch. Read this book. You will thank me later (David Baldacci)

Orphan X is his best yet - a real celebration of all the strengths Gregg Hurwitz brings to a thriller (Lee Child)

Orphan X is the most gripping, high-octane thriller I've read in a long, long time! (Tess Gerritsen)

Orphan X is most exciting new series character since Jack Reacher. A page-turning masterpiece of suspense (Jonathan Kellerman)

As a boy, Evan Smoak was taken from the orphanage he called home and inducted into a top secret Cold War programme. Trained as a lethal weapon, he and his fellow recruits were sent round the world to do the government's dirty work.

But the programme was rotten to the core. And now the man responsible needs things to be nice and clean. All evidence must be destroyed. That includes Evan.

To survive, Evan's going to have to take the fight to his nemesis. There's just one problem with that. Jonathan Bennett is President of the United States and Evan isn't his only victim.

To save himself - and the country - Evan is going to have to figure out how to kill the most well-protected man on the planet...

'Pure nail-biting suspense' Harlan Coben

'Memorable as hell' James Patterson

'Outstanding in every way' Lee Child

'Brilliantly conceived and plotted...blows the doors off most thrillers I've read' David Baldacci