This is the third story in the Isles/Rizoli series and while interesting, it seems to have lost a certain something for me. The characters seem to have lost themselves into angst and forgotten some of the core character points. It's unusual in a series for characters to move to being more cardboard rather than revealing more of themselves in the story, but this is what I can see in this story. It's the story of two dead nuns, one of them is found to have recently had a child and the torturous circumstances. Each clue brings some more interesting twists but the personal stories of Rizzoli and Isles just didn't grab me.