This second installment of the Cleo North trilogy picks up four months after The First Mistake. Cleo receives a call from Marc Sloan, whom she met in Santa Fe, asking her to locate one of his missing employees. Sheís eager to accept the job, and not just because she can get out of helping her step-mom pick out wallpaper samples. She and Marc have flirted with each other before, but circumstances never allowed it to go any further.
Upon arriving in Charleston, she meets with Marc to get the specifics of the case. Trish Jackson is twenty-two, and, according to Mark, seemed excited before she disappeared, like she was dating someone new. Cleo spends her afternoon investigating and when she arrives at the corporate guest house, she finds out that sheís staying right next door to Marc. She hasnít decided yet how far sheís ready to go, but canít deny she enjoys the manís company.
Jack Donovan shows up in Charleston to question Marc about his access to some classified information. Jack didnít realize Cleo was there and she found it entertaining how both men reacted to each other. When Cleo discovers that their two cases may be connected, she and Jack team up once again, joined by Marc this time, to try and stop a terrorist who is a major threat.
The Middle Sin is a delicious blend of mystery and romance, a very healthy dollop of action and a touch of humor. I very much enjoyed getting to know more about all three main characters and watching them dealing with and learning from personal issues. The action was intense and nail biting and you will be grateful that you donít have long to wait for the conclusion of this trilogy Ė The Last Bullet.