Title:	I Know a Secret
	Author:	Tess Gerritsen
	Published:	August 15, 2017, Ballantine Books
	No. of Pages:	337
	Cover Price:	$28.00 Hardcover, $14.99 Kindle

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I Know a Secret is the 12th novel in the bestselling Rizzoli & Isles series by veteran author Tess Gerritsen. Jane Rizzoli is the Boston PD Detective who works alongside the medical examiner, Maura Isles. They are also friends. When they are both called to a gruesome murder scene where a horror movie producer is found with her eyes scooped out (post mortem) and no clear cause of death, and shortly after a male body with three arrows through his torso (also post mortem) with no clear cause of death, they begin to investigate how the two deaths might be related, even though it seems unlikely. It occurs to Maura that each of the murders is representative of a martyred saint and as more bodies are discovered, the theory begins to ring true.

Both Rizzoli and Isles are having crises (Jane’s parent’s marriage is falling apart in addition to dysfunctional family issues, and Maura’s birth mother, who is a serial killer and in prison, is dying, in addition to needing advice from Daniel and not being able to resolve their relationship problems) in their personal lives, which gives readers pause to relate and look at them as real. As they discover more murders that might be related, and as another voice – a woman who knows the victims and who attends the funerals – narrates some of the chapters, the suspense builds, and the book becomes difficult to put down.

As with all well-written thrillers, I Know a Secret has plenty of ups and downs, as well as a surprise ending. Although it is possible to read this as a standalone novel, being familiar with the characters by reading the previous novels in the series will make this one even more enjoyable.

Special thanks to NetGalley for supplying a review copy of this book.