World visited in C.S. Lewis books (6)

I believe the answer is:

narnia

(Other definitions for narnia that I've seen before include "Imaginary land of C.S. Lewis" , "C.S. Lewis fantasy land" , "CS Lewis' fictional realm" , "The Lion, the Witch and the Wardrobe country" , "magical land" .)

I've seen this clue in The Wall Street Journal.

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