The world building is good set around 30 years ago, yet with technology from far in the future. The world is run by the superpowers USA, Russia, China & Germany. These four nations are supposedly at peace with each other however on a covert level they strive to wipe each other out. This covert warfare is known as Shadowstorm and is carried out by agents known as "Levels" who have been given bio-medical/mechanical upgrades and other advancements making them superhuman.
When a much higher level calls in sick, Alix causes a clerical error and gets assigned the job. The task involves tailing a former Russian Level however all hell breaks loose when Alix is fired upon by a Russians protector and soon enough things descend into all out chaos. This horrible mix up is then rectified as Alix gets a dressing down from her superiors about her disastrous mission, things however aren't finished as she learns that there was much more to that incident than just a mix-up and things have a way of being connected to her past namely her missing dad. The investigation is re-opened, heralding the start of a thrilling journey as a plot to sabotage the worlds oil supply is uncovered.
There are many stand out moments in the book but the best has to be Alix in pursuit of a foreign level jumping off the Eiffel Tower without a parachute, catching him, digging her augmented hand into his collarbone and pulling his parachute chord. She is impulsive, emotionally unstable and a borderline psychotic killing machine, but you can't help loving this character to bits.
This is an excellent debut novel and I look forward to the next book in the series.