How to Read the Sister Agatha Series
The Sister Agatha cozy mystery series, co-authored by the husband-and-wife writing team of Aimée and David Thurlo, is best read in publication order. Because the books follow a tight chronological continuity, reading them in order allows you to appreciate the gradual development of Sister Agatha's relationship with her monastery, her ex-lover Sheriff Tom Green, and her loyal ex-police dog, Pax.
Sister Agatha Books in Publication and Chronological Order
Since the chronological events of the series line up directly with the order in which the books were released, readers do not have to worry about complicated timelines. Here is the complete list of Sister Agatha novels in the recommended reading order:
- Bad Faith (2002) — Sister Agatha investigates the poisoning of Father Anselm during Mass, marking her first official clash between her new monastic life and her old skills as an investigative journalist.
- Thief in Retreat (2004) — Dispatched to a nearby diocesan retreat that was once a monastery, Sister Agatha looks into the theft of valuable religious art, rumors of a ghost, and the disappearance of an art appraiser.
- Prey for a Miracle (2006) — Sister Agatha shields Natalie Tannen, a young woman claiming to have witnessed angelic visitations, from a media circus and suspicious threats by housing her inside Our Lady of Hope.
- False Witness (2007) — While dealing with direct threats to the monastery's boundaries and computer systems, Sister Agatha agrees to search for the missing niece of an ailing vineyard owner to secure financial aid.
- The Prodigal Nun (2008) — The monastery agrees to take in a loud, impulsive novice named Sister Josephine in exchange for funding. However, her arrival brings a series of dangerous threats that Sister Agatha must unravel.
- Bad Samaritan (2009) — Sister Agatha faces her most personal investigation yet when Sheriff Tom Green is accused of murdering a political rival during an election campaign.
What to Know Before You Start
Before diving into the series, it is helpful to understand the unique structure of Sister Agatha's world. Sister Agatha is an extern nun at the cloistered Our Lady of Hope Monastery in Bernalillo, New Mexico. Unlike the cloistered nuns who remain permanently inside the monastery walls, an extern nun acts as the community's liaison to the outside world. This role gives Sister Agatha the freedom to ride her yellow Harley-Davidson motorcycle, run errands, and inevitably get involved in local criminal investigations.
Her companion, Pax, is a retired police German Shepherd who suffered a physical injury. Sister Agatha adopts Pax to help guard the monastery, and the dog quickly becomes an essential partner in her investigations. Additionally, the recurring presence of Sheriff Tom Green—Sister Agatha's former fiancé from her pre-convent days as journalist Mary Naughton—adds a layers-deep emotional tension as they work together on local cases.
Practical Reader Advice
Can the books be read as standalones? Yes, the mystery at the center of each book is fully resolved by the final chapter. However, we highly advise starting with Bad Faith. The underlying subplots—including the monastery's ongoing financial struggles, the introduction of key figures like Sister Josephine, and the evolution of Agatha's relationship with Tom Green—develop continuously across the six volumes.
Are there spin-offs or tie-ins? There are no official spin-offs or short story companion pieces for this specific series. However, fans of the Thurlos' Southwestern mystery style will find similar atmospheric storytelling in their long-running Ella Clah mystery series, which features a Navajo police officer and is set in the nearby Navajo Nation.