Void Moon by Michael Connelly
A young woman finds herself caught up in a scam which may cost her the one thing she values more than her life...Cassie Black has been lured back to the criminal profession she gave up - robbing gamblers of their winnings - by a proposition that is just too good to miss. The job goes as planned, except that the target has too much money. It can only mean someone very powerful is going to be very angry indeed. Cassie finds herself on the run from a killer who seems to know her every move in advance. Worse still, he is closing in on the one thing Cassie will do anything to protect.