Fictional world entered through a wardrobe (6)

I believe the answer is:

narnia

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

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

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