Eye for Eye (Talion #1) by J. K. Franko

"When I first met Susie, she appeared to be a normal, happily-married woman dealing with tragedy. Then I uncovered her secrets. While I could understand everything that she'd done, I could never approve. But, knowing what she was capable of, it became clear that if I was going to survive her, I had to play by her rules. And, the first and most important rule is...leave no singing bones." -- p.4 of cover.