Sister Lou Mystery books in order

Sister Lou Mystery is a three-book cozy mystery series by Patricia Sargeant featuring a nun who solves murders in a small Ohio town, published between 2017 and 2019.

Reading order

# Title Published Author Buy on Amazon
1 Mayhem & Mass 2017 Patricia Sargeant Buy
2 Peril & Prayer 2018 Patricia Sargeant Buy
3 Alibis & Angels 2019 Patricia Sargeant Buy

Sister Lou Mystery is a three-book cozy mystery series by Patricia Sargeant set in the fictional small town of Briar Coast, Ohio. The protagonist is Sister Louise LaSalle, known as Sister Lou, a nun in her 60s who becomes an unlikely amateur detective when murders occur in her community.

The three books follow Sister Lou as she investigates cases often involving the Catholic community she lives and works in: Mayhem and Mass (2017), Peril and Prayer (2018), and Alibis and Angels (2019). Her age and religious vocation give the series a distinctive voice compared to most cozy mystery protagonists. Her nephew, who works in law enforcement, is a recurring supporting character and a source of tension over Sister Lou’s involvement in police matters.

The series is best read in order, as the ongoing relationship between Sister Lou and the recurring cast develops across the three books. Readers who enjoy cozy mysteries with unusual amateur detectives will find Sister Lou an appealing change of pace.


Frequently Asked Questions

How many books are in the Sister Lou Mystery series?

There are three books in the Sister Lou Mystery series, published between 2017 and 2019.

What is the first book in the Sister Lou Mystery series?

The first book in the Sister Lou Mystery series is Mayhem & Mass, published in 2017.

What makes the Sister Lou Mystery series distinctive among cozy mysteries?

The amateur sleuth is Sister Louise Lou LaSalle, a nun in her mid-60s, which is an unusual protagonist for the genre and gives the series a different tone and perspective from most cozy mysteries.

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