As Yuletide settles upon Gwenafwy Abbey, the rural Welsh convent’s peace is shattered when Tiffany Reese, president of the Village Art Society, is found dead on the floor of the parish hall. Sister Agatha, whose interests lie more with reading and writing mystery stories than with making the abbey’s world-renowned organic gouda, is not shy about inserting herself into the case. With the not-entirely-eager assistance of Father Selwyn, she begins her investigation.

Sister Agatha has no shortage of suspects to check off her naughty-or-nice list, until finally, Tiffany’s half-brother, Kendrick Geddings, emerges as the prime suspect. There never was any love lost between Tiffany and Kendrick, and of late they had been locked in a vicious battle for control of the family estate. But if Sister Agatha thinks she has the case wrapped up, she’ll have to think again.

As the days of Advent tick by, Sister Agatha is determined to crack the case by Christmas in The Hour of Death, Jane Willan’s perfectly puzzling second Sister Agatha and Father Selwyn Mystery.