It’s winter in Shrewsbury, and a particularly bad storm puts a hole in the roof of the Abbey. While the brothers are up fixing it, Brother Haluin falls from the roof. His injuries are grave, and they do not expect him to live. Because of this, he makes a confession that Brother Cadfael is there to hear. And then, he lives.
Though his legs were shattered, and he can only walk on crutches, Haluin pledges to make a pilgrimage to the grave of a girl that he wronged before he took his vows, and Cadfael goes with him, to help him along the way. You really need to read the book to get the full sense of the transgression that Haluin is trying to atone for, and exactly how many things on his pilgrimage go so incredibly right to help him do it. It’s a different book than many of the others in this series. There is a murder, but it’s almost a side action. It’s really a story of following your heart when it tells you must do something.