Though it was thought that Cadfael had not solved the murder case, he had. He had also restored the St. to her grave where he believed she belonged. Gwytherin continued to be blessed with miracles from the St.’s presence, though they did not know that her remains were still in their town. Everyone believed that the relic was in the Shrewsbury Abbey. Cadfael’s decision to replace St. Winifred’s bones with Columbanus’ body
Cadfael made the right choice to replace St. Winifred’s bones with Columbanus’ body and return her to her grave. The first reason is that it was a clever way to conceal the fact that Columbanus was the murderer. The second reason is that the Shrewsbury Abbey would still believe that they had the St.’s bones. Third, it created a happy ending for most of the characters. The fact that Cadfael replaced the St.’s bones mattered to the Monastery because it saved them from being accused of having a murderer, and they were able to return to Shrewsbury Abbey