“The Return of the Sorcerer” first appeared in Strange Tales of Mystery and Terror, (September 1931)
“The City of Singing Flame” first appeared in Wonder Stories, (July 1931)
“Beyond the Singing Flame” first appeared in Wonder Stories, (November 1931)
“The Vaults of Yoh-Vombis” first appeared in Weird Tales, (May 1932)
“The Double Shadow” first appeared in The Double Shadow and Other Fantasies, Auburn Journal (1933)
“The Monster of the Prophecy” first appeared in Weird Tales, (January 1932)
“The Hunters from Beyond” first appeared in Strange Tales of Mystery and Terror, (October 1932)
“The Isle of the Torturers” first appeared in Keep on the Light, Selwyn & Blount (1933)
“A Night in Malnéant” first appeared in The Double Shadow and Other Fantasies, Auburn Journal (1933)
“The Chain of Aforgomon” first appeared in Weird Tales, (December 1935)
“The Dark Eidolon” first appeared in Weird Tales, (January 1935)
“The Seven Geases” first appeared in Weird Tales, (October 1934)
“The Holiness of Azédarac” first appeared in Weird Tales, (November 1933)
“The Beast of Averoigne” first appeared in Weird Tales, (May 1933)
“The Empire of the Necromancers” first appeared in Weird Tales, (September 1932)
“The Disinterment of Venus” first appeared in Weird Tales (July 1934)
“The Devotee of Evil” first appeared in The Double Shadow and Other Fantasies, Auburn Journal (1933)
“The Enchantress of Sylaire” first appeared in Weird Tales, (July 1941)
All stories reprinted therein are from their original book or magazine appearances, and have not been altered or edited.