"Till We Have Faces" may have some influences from his grief, but the primary subject was theological in nature, dealing with a character whose life is filled with questions and complaints against divinity and how those seem to go unanswered. The conclusion underscores this:

> I ended my first book with the words no answer. I know now, Lord, why you utter no answer. You are the answer. Before your face the questions die away. What other answer would suffice?

("Till We Have Faces", pt 2. ch. 4)

It is a novel that is more an apologetic that deals with philosophic quandaries than anything relating to personal loss.

Davidman had a lot of influence on the writing of "Till We Have Faces," but it was published before her death. "A Grief Observed" is the book Lewis wrote about the grief that followed.