The final book of the space trilogy by C. S. was for me the most absorbing. I found That Hideous Strength to be a true page turner. It describes a cosmic battle between diabolical sterility (symbolized by the moon and championed by a secretive organization) and the blessed messiness of life (championed by a group of inspired refugees in an old English house with a resident bear named Mr. Bultitude).
The conflict is waged in an English university town which serves as a microscosm for the world. The characters and the plot take the reader through feelings of apprehension, fear, introspection, relief, and elation.
Some masterfully timed humor precedes a satisfyingly climactic resolution. As any good fantasy should be, this is a very human story, and its impact is enhanced by supernatural elements. Featuring sinister entities known to certain characters only as Macrobes, the Oyeresu from multiple worlds, a resurrected Merlin, and a nearly perfected Elwin Ransom, this is a story unlike any I have ever read. So slow down, dig in, and enjoy the ride.