He's the only one who can stop a massacre ... The unputdownable action thriller from Australia's no.1 true crime writer.

Riley Jax, convicted murderer. Once a promising engineer in the army, he lost everything in a single night when he killed a man – an act he cannot remember.

It's a devastating gap in an otherwise perfect memory.

Now he's facing a new life, one behind bars, where he has to learn a whole different set of rules and only the toughest survive.

And as a series of deadly bombings rocks the outside world, the only man who might be able to find the truth behind the conspiracy ... is on the inside.

Australia's no.1 true crime writer lets his imagination off the leash in this unputdownable action thriller for all fans of Matthew Reilly, Lee Child and David Baldacci.

'An exciting action thriller ... An enjoyable, easy flowing tale that will keep you turning the pages' Canberra Weekly

'A gripping new action thriller ... The story moves along at a lightning-fast pace. [Phelps has] got a knack for bringing you right into the heart of the action, making for some truly tense moments. The Inside Manticks all the boxes when it comes to an action-packed crime novel. If you enjoy authors like Tom Clancy, or are just looking for a thrilling new read, check out The Inside Man. I can't wait to see where Phelps takes this series next.' Better Reading