A woman, Lucky Strike, approaches Dr. Brennan with questions about a disappearance, a case that was closed years ago. The woman is a web sleuth, a hobbyist detective who spends a lot of her free time investigating closed cases and discussing them on the internet.
The woman comes across as a nut, but naturally provides Temperance enough to become curious, which leads into twisty passages of an investigation.
Ramsey, a sheriff she has to deal with, is a reluctant partner, and a comes across as a bit of a chauvinist. He contrast a bit with Andrew Ryan, who wants to get married. Then things get complicated with Lucky is killed.
The solution to this one surprised me, and the story was very good, I looked for those moments when I could read a few pages. This is better than some of the more recent books, a very good read.