The Raven's Mask. The Oligarch's Daughter, #1

She has no official designation. No government backing. No one who will claim her if things go wrong. What Aria Voss-Okafor has is a dead woman's network, an inherited fortune she has never fully spent, and a name she uses when she needs to disappear: The Raven. When a simple asset extraction in Dubai surfaces a financial reference code she last saw in her mother's private papers - papers she was never supposed to read - Aria stops treating the mission as a job.
Because Adaeze Okafor did not die in a clear-weather accident eleven years ago. She was removed. And the organization that authorized her death has been operating inside European governments, financial institutions, and intelligence services ever since. Now Aria is running a private investigation with a former NSA analyst who lost her career for looking too hard at the wrong accounts, a Delta Force combat medic who has her own reasons to want answers, and a man named Nikolai Reeves who keeps appearing at exactly the wrong moments and saving exactly the right people - and who knows far more about her mother than he should.
The trail runs from the glass towers of Dubai to the private banks of Geneva to a sealed envelope in a house in Oslo that has been waiting eleven years for someone ready to open it. The Raven's Mask is the explosive debut of a five-book spy thriller series featuring one of fiction's most formidable heroines: a woman who inherited a war she didn't start and chose, with complete deliberateness, to finish it.