Diamond and the Edinburgh Madam

In the second book of the series Diamond Rising Star Adair is continuing her transition from a jet-setting college professor and pursuer of hobbies to being the owner of her own detective agency. Her best friend's family is again attacked by a mysterious sniper. Wary of the motives for the attack and the impact they might have on her friend, Diamond is initially reluctant to take up the case. As the action moves from Nebraska and Wyoming to Denver, Tulsa and Tahlequah we learn that the sniper is a former policewoman from Scotland who was fired after the second questionable death of a suspect and became the owner of a BD/SM brothel in Edinburgh. A mysterious Modoc Man joins her vendetta. In the middle of the action, Diamond is led to spend time with a distant relative and begina accepting that she is in a line of Cherokee medicine women. Nothing is predictable in this complex, mature detective story.