Edited sentence: A science-fiction novel in which a return to Arianism is the last best hope of an exhausted post-Christian West remains to be written -- though science-fiction writers like Orson Scott Card (a Latter-day Saint) and Gene Roddenberry have made a start.Several historical novels involve the turning-point of Western history in which the tolerant, practical flexibility of Arianism in the Gothic and Celtic Churches was overpowered by the intolerant, centralized dogma of the Roman Church.Some of these novels are excellent, such as "Raptor", by Gary Jennings; some are simply awful, such as "The Da Vinci Code", by Dan Brown