The last book of Lewis's sci-fi trilogy is a breakneck journey of suspense in which Dr. Ransom must choose sides in a battle between science and ethics. Like Perelandra and Out of the Silent Planet, this is a compelling work of fiction that is also, at its heart, a timeless allegory of good and evil. Written during the dark hours immediately before and during the Second World War, C. S. Lewis's Space Trilogy, of which That Hideous Strength is the...