If asked to name the work of new fiction (in other words, as opposed to Jane Austen) that I have read in the past few decades that moved me the most, I would without hesitation say "The Children of Men" by P.D. James.
No, I have not seen the movie that is allegedly based on the book because friends who are fierce James fans warned me not to. Why? They said the team behind the movie ripped out the book's gripping Christian foundation, which I have heard referred to as a sci-fi take on the "Culture of Death" theme in the work of Saint John Paul II.
Here is the last sentence of the book, in which an underground (and very fragile and flawed) circle of Christian believers fight to bring life back into a world that has mysteriously gone sterile: "It was with a thumb wet with his own tears and stained with her blood that he made on the child's forehead the sign of the cross."
Now, we are watching a similar editing process take place in some -- repeat some -- of the mainstream media obituaries for one of the most important English writers of the past half a century.
C.S. Lewis said the world didn't need more "Christian writers," it needed Christians who were willing to do the hard work of writing for everyone. That was P.D. James. The great Dorothy L. Sayers considered murder mysteries the perfect form of writing for Christians because they open with an act of undeniable evil (evil exists) and then someone goes into the world seeking concrete evidence of truth (truth exists) in order to produce justice (it is possible to do good in the real world). That's P.D. James, as well.