The Hong Kong Stories — Mark Dawson

Beatrix Rose has been betrayed. Her husband has been murdered and her daughter, Isabella, abducted. She flees to the Hong Kong underworld to plot her revenge. Those who wronged her will pay. Beatrix is the most dangerous woman you've ever met. She was an assassin for The Firm, the beyond top secret agency that did the dirty work for the British Secret Services. She is lethal. Ethically flexible. Totally ruthless. And you know what they say about payback....

Beatrix needs cash to pay for the search for Isabella. When she rescues a local man from a brutal beating in a Kowloon karaoke bar, she ends up finding moneymaking opportunities in the local underworld. The triads have a need for a woman with her particular skills, but when the boss goes too far, he has to pay the price. In a breakneck-paced roller coaster of action, Beatrix discovers that danger lurks in the unlikeliest of places, and nothing is as it seems.