The nightmare, and other tales of dark fantasy
Bok
The nightmare (All-story weekly, April 14, 1917) -- The labyrinth (All-story weekly, July 27/August 10, 1918) -- Friend island (All-story weekly, September 7, 1918) -- Behind the curtain (All-story weekly, September 21, 1918) -- Unseen, unfeared (People's favorite magazine, February 10, 1919) -- The elf trap (Argosy, July 5, 1919) -- Serapion (Argosy, June 19/July 10, 1920) -- Sunfire (Weird tales, July/August/September/October 1923)