Notes “The Queen of Drum” is nearly unique among Lewis’s works in offering a third choice—Heaven, Hell, and Elfland—rather than a strict either/or choice between heaven and hell.
Christopher, Joe R.
"Three Views of Faerie in C.S. Lewis's "The Queen of Drum","
Mythlore: A Journal of J.R.R. Tolkien, C.S. Lewis, Charles Williams, and Mythopoeic Literature: Vol. 22
, Article 3.
Available at: http://dc.swosu.edu/mythlore/vol22/iss3/3