This novel was first published in 1913 as The Soul of Melicent.
It was then reprinted in in 1920 in a slightly revised text under the author's preferred title, Domnei: A Comedy of Woman-Worship.
Then in 1928 for the collected (Storisende) edition of Cabell's works, The Music from Behind the Moon (a novella originally published separately) was added to Domnei and they were subtitled Two Comedies of Woman-Worship; this text was also used for the Ballantine Adult Fantasy reissue.
So, strictly, volumes that contain only The Soul of Melicent or the 1920 Kalki Domnei (or reprints derived from this such as the Wildside edition) should be kept separate from volumes that contain the two works Domnei and The Music from Behind the Moon (such as the Storisende and Ballantine). Unfortunately the double work is sometimes listed simply as Domnei, though when these display the Ballantine 0345- isbn prefix we can tell. The single work and the double work have been separated here as best as may be. When listing yours, please specify if The Music Behind the Moon is present; and do not combine the two separated works.

I have to admit that I kept thinking that if this had been written 100 years later it would probably have been porn of the slightly sado-masochist variety. I kept waiting for someone to beat the heroine with a slipper or seduce the hero. The book isn't written for laughs and I'm no sure what the author's intent was, except to puncture the fallacies of the chivalric ideal. I'm not sorry I read it, but I'm still not sure why. (