Sister Holiday Mysteries Series

In the latest in the USA Today bestselling, award-winning, critically acclaimed series, New Orleans punk rock nun-detective Sister Holiday plunges into a “hellish underworld of drug trafficking, addiction, and her own dark past in a journey that is both riveting and sacred.” (Ana Reyes, New York Times bestselling author of The House in the Pines)

“Divine Ruin is fearlessly inspired.” (Gillian Flynn)

It’s a steamy, restless end of the school year in New Orleans. Sister Holiday is finishing her music classes and preparing for her permanent vow ceremony, a pivotal moment in her journey of faith. But when one of her favorite students is found dead of a fentanyl overdose, Sister Holiday and her partner-in-PI, Magnolia Riveaux, are determined to track down the drug dealers. As students continue to fall prey tothis sinister drug, Sister Holiday becomes more desperate to stop the epidemic—while facing her own past with addiction, a demon that is never too far.

With Douaihy’s signature mix of grit, heart, and faith, Divine Ruin tests the limits of Sister Holiday’s devotion in her darkest and most shocking case yet.

A New York Times Best Crime Novel of 2024

Winner of Publishing Triangle’s Joseph Hansen Award for LGBTQ+ Crime Writing

Sister Holiday is back with a newly minted PI apprentice certificate, a twisty mystery to solve, and something to prove in this fast-paced, blistering follow-up to Scorched Grace.

“Sister Holiday is simply a joy of a narrator—and definitely my kind of character: flawed, dark, buoyant, and often laugh-out-loud funny.” —Gillian Flynn, Gillian Flynn Books

Tattooed from her neck to her toes and sporting a gold tooth as sharp as her wisecracks, Sister Holiday struggles to stay on the righteous path. Never one to make things easy for herself, she’s committed to taking her permanent vows with the Sisters of the Sublime Blood and joining former fire inspector Magnolia Riveaux’s latest venture, Redemption Detective Agency—both in service of satisfying her eternal quest for answers.

When Sister Holiday and Riveaux set out to bust a philandering husband, they instead find the body of a priest floating in the swollen Mississippi river, and with it, Redemption’s next case. It’s significantly more gruesome than their original mission, but Sister Holiday feels called on by God to hunt down the murderer and keep her community safe.

As a torrential rainstorm drowns New Orleans for three harrowing days over Easter weekend, Sister Holiday and Riveaux follow the clues. With the stakes rising alongside the relentless floodwaters, our favorite punk nun-sleuth throws herself into the deep end yet again.

A lacerating and lyrical plunge into obsession, deception, and the questions that hold us captive, Blessed Water is a lights-out mystery that will leave you breathless.

A USA Today Bestseller · A New York Times, Apple Books, and The Guardian Best Crime Novel of the Year · An Indie Next Pick · Winner of the Pinckley Prize for Crime Fiction and the Saints & Sinners LGBTQ+ Festival Emerging Writer Award · Longlisted for the Mass Book Award · A Finalist for the ITW Thrillerfest, New England Book, Left Coast Crime “Lefty”, and Anthony Awards · Best Author by Boston Magazine

Sister Holiday, a chain-smoking, heavily tattooed, queer nun, puts her amateur sleuthing skills to the test in this “unique and confident” debut crime novel (Gillian Flynn).

When Saint Sebastian’s School becomes the target of a shocking arson spree, the Sisters of the Sublime Blood and their surrounding community are thrust into chaos.

Unsatisfied with the officials’ response, sardonic and headstrong Sister Holiday becomes determined to unveil the mysterious attacker herself and return her home and sanctuary to its former peace. Her investigation leads down a twisty path of suspicion and secrets in the sticky, oppressive New Orleans heat, turning her against colleagues, students, and even fellow Sisters along the way. Sister Holiday is more faithful than most, but she’s no saint. To piece together the clues of this high-stakes mystery, she must first reckon with the sins of her checkered past—and neither task will be easy.

An exciting start to Margot Douaihy’s bold series for Gillian Flynn Books that breathes new life into the hard-boiled genre, Scorched Grace is a fast-paced and punchy whodunnit that will keep readers guessing until the very end.