Killer Instinct (Charlie Fox Series #1)

Charlie Fox makes a living of sorts teaching self-defence to women. It's a skill she picked up out of necessity having been kicked out of the army for reasons she prefers not to go into. So when Susie Hollins is found dead only a few hours after she mistakenly tussles with Charlie at the New Adelphi Club, she knows it's only a matter of time before the police come calling. Charlie finds herself drawn into the investigation when the Adelphi's enigmatic owner offers her a job.

Charlie has always taught her students to run away from a danger rather than fight unnecessarily. But when the killer starts taking a personal interest in her it becomes clear she isn't going to have that option...