If you stab him in the back, make sure you don't miss. Will Slater is out for revenge in the fourth book in a pulse-pounding series from Matt Rogers, a million-copy bestseller and 'a bright new talent shaking up the genre' (Candice Fox).

Half a year ago in Macau, Will Slater waged war to rescue nine-year-old Shien from the clutches of a hellish industry. He left her with an old government colleague, who promised to find her a foster home and give her some semblance of a normal upbringing. Slater moved on...

Now, deep in cartel-infested Colombia, he hears dark whispers of something called the Lynx program – a clandestine division that raises young girls and forges them into sociopathic killers. A division founded by the very same man Slater left Shien with.

He drops everything and barrels toward answers. Because if you make Slater a promise, you’d better not break it. The kid was a shining ray of light in his otherwise barbaric reality, and he’ll sacrifice everything to make sure she’s safe.

If you stab him in the back, make sure you don't miss. Will Slater is out for revenge in the fourth book in a pulse-pounding series from Matt Rogers, a million-copy bestseller and 'a bright new talent shaking up the genre' (Candice Fox).

Half a year ago in Macau, Will Slater waged war to rescue nine-year-old Shien from the clutches of a hellish industry. He left her with an old government colleague, who promised to find her a foster home and give her some semblance of a normal upbringing. Slater moved on...

Now, deep in cartel-infested Colombia, he hears dark whispers of something called the Lynx program – a clandestine division that raises young girls and forges them into sociopathic killers. A division founded by the very same man Slater left Shien with.

He drops everything and barrels toward answers. Because if you make Slater a promise, you’d better not break it. The kid was a shining ray of light in his otherwise barbaric reality, and he’ll sacrifice everything to make sure she’s safe.