Fantasy novels
A well-written fantasy novel may portray a world where the laws are different from our world, but a commitment to the laws of reason will be manifest on every page. If certain things happen, certain things must follow. This type of connection is absent on television in general. I may not be overstating it to suggest that a mind for truth would be better cultivated by reading fantasy novels than watching the evening news.
... There is so much to be gained from reading, but my call is not merely for Christians to read, but to read more, to read more broadly, to read more broadly together.
- Rick Ritchie in "Wanted: Thinking Christians", Modern Reformation, July/August Vol. 3 No. 4 1994 Pages 18-23
Hopefully by "well-written" the author didn't mean something like Tolkein's work. Somehow I suspect that they do though.