The Sinner (Jane Rizzoli & Maura Isles, #3) - Tess Gerritsen This book really brings out the Rizzoli and Isles characters and you can sense that the writer is hitting her stride. You learn a lot more about both women's pasts and it makes the characters a lot more likeable. Rizzoli in particular - she's less abrasive in this book and I feel like the author has set them up to be friends without getting all girly about it.This installment has Rizzoli and Isles working the murder and attempted murder of two nuns in a Boston convent. The plot is very good and it has some unexpected twists. Since I read this in a day, I'd say it's highly entertaining. :)