This is the third, and sadly, the final Nadia Stafford novel. The first is Exit Strategy. I would recommend reading the books in order, but you don't have to.
I love Nadia Stafford. Ex-cop turned hit woman who only kills those who deserve to die. The final novel is Nadia;s past coming full circle. The twists in this story were good. Things one never expected to find out. The story moves smoothly, and has a good balance of action and personal. Worth the read and was worth the wait for it to be published.