The Virgin in the Ice is my last read in the Brother Cadfael series. The books were written by Ellis Peters. The setting is England during a Civil War between cousin contenders to the throne: Stephen and Maud. In the middle is Cadfael's monastery. Cadfael is not a priest. He is a Benedictine brother. He is the gardener, specifically of herbs, which makes him the medical person.
A boy and his older sister are lost on their way to Cadfael's monastery. Cadfael is sent to another monastery, they could have gone to. The siblings were accompanied by a nun and a monk. Cadfael finds the monk, beaten close to death and nurses him at that monastery. Retracing the monk's steps, still looking for the siblings, he comes across the virgin in the ice. It turns out to be the nun chaperoning the girls.
It turns out that the girl is too head strong. She set out on her own looking for her boyfriend. Her brother comes to the monastery, grief stricken. He tends to the ill monk.
To complicate matters, a band of vicious marauders is burning and looting the farmers. Did they kill the nun? What did they do with the girl she was chaperoning?
The girl makes it to her boyfriend, but he turned out to be a lout and she stabs him and runs away. Fortunately, she finds refuge with a forester.
Oh, another mystery. It seems a stranger seems to be looking for the sister and brother. It can't be their uncle because he is on the other side, in this Civil War, and would be killed on sight.
That ill monk gradually realizes that he was responsible for the group and feels guilty. He gets out of his sick bed and leaves, presumably to find the girl. The brother is charged to take care of him, so he accompanies him.
The kid brother thought he found help, but it turns out that the help was the band of bandits. They take the boy for ransom because they could tell by his clothes that someone would pay to get him back.
In the background is Cadfael and the sheriff looking for the girl and the bandits, and possibly the stranger.
The boy is kept prisoner. That stranger turns out to be working for the uncle. He sneaks in where the boy is kept. The two try to escape in the confusion when Cadfael and the sheriff attack the bandits. Thrown in the confused, is the ill monk who is in a delirium and runs in like the mad man he has become, and the boy and his rescuer escape.
The boy and his rescuer make plans to go to his sister, who by now has found her way to the monastery. They are to secretly meet and at a certain time to go home to their uncle. Remember the rescuer cannot be caught because he's on the other side of the Civil War.
Cadfael catches this strange rescuer and when he listens to his story, he realizes that he is his son. The three make good their escape and Cadfael says prayers of thanksgiving, both for meeting his son, and for the children's return to their uncle.