Again, this is a lot better plot-wise than some of Cornwell's recent books. She does autopsies, investigates bizarre forensics, gets into the lives of her victims. These are the strengths of the series, and always have been. And it's good that she's getting back to them. However, whilst she's ditched some of her other bad habits and has got a hold back on her characters again (Benton is actually rather interesting in this book, and Lucy seems more human; only Marino remains slightly a caricature here, a person who no one alive would tolerate, so childish is his behaviour), she's acquired a couple of new ones: she does occasionally get very BORING. Her plots move too slowly nowadays (they didn't used to), mostly because for some reason this one in particular unfolds over less than a day, so she stuffs the rest of the pages with Scarpetta's introspection and musings on the morality of all and sundry. She would be better to ditch this and add in a bit more plot, because let's face it this books, whilst the plot is fine, does not need 500 pages to tell it.
Overall, as with Red Mist and The Bone Bed this is a distinct improvement, but she needs to tell the story over a longer period of time, and I think that would iron out most of the issues.