A review by wyvernfriend
Brother Cadfael's Penance by Ellis Peters

4.0

Cadfael's son Oliver de Bretagne, is captured and there's a refusal to acknowledge where he is and there's no demand for ransom but there are rumours and Cadfael has an opportunity to attend a conference and find out about him. To add to the confusion a contentious nobleman is dead, apparently by Oliver's Brother-in-Law Yves Hugonin, and as usual Cadfael intervenes to help.

Added to that are some serious issues that Cadfael has to deal with about his vocation and his loyalty to the order. I'm sad to see that this is the last in the series, and it's a good end to the series.