Fantasy land in "The Lion, the Witch and the Wardrobe" (6)

I believe the answer is:

narnia

(Other definitions for narnia that I've seen before include "The Lion, the Witch and the Wardrobe country" , "CS Lewis's fictional realm" , "In territory of Lewis" , "that's behind the wardrobe" , "C. S. Lewis's imaginary land" .)

I've seen this clue in The New York Times.

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