The Sinner is a 2003 mystery novel by Tess Gerritsen

Tess Gerritsen

Tess Gerritsen, M.D., is a Chinese-American novelist and retired physician. Her first name is really Terry; she decided to feminize it when she was a writer of romance novels.-Early life:...

, the third book of the Maura Isles/Jane Rizzoli series.

Plot

The Sinner involves Detective Jane Rizzoli and a main character new to the series, first seen in "The Apprentice" as a minor figure, medical examiner Dr. Maura Isles. When a young novice nun about to take vows is found murdered in the abbey's summer chapel, Isles and Rizzoli are immediately called to the scene. The elderly nuns are of little help to Isles and Rizzoli but when another body is found, mutilated beyond recognition (and testing reveals the body to be that of a fortyish India

India

India , officially the Republic of India , is a country in South Asia. It is the seventh-largest country by geographical area, the second-most populous country with over 1.2 billion people, and the most populous democracy in the world...

n Hansen's Disease victim), it is soon discovered that there is more to these killings than meets the eye.