Mistress of Death featuring Agnes de Chastillon.
Howard only wrote two drafts of “Mistress of Death”, both incomplete. The second of the two drafts was later completed by Gerald W. Page and it was this version that was first published in Witchcraft & Sorcery Volume 1 Number 5 (January–February 1971). Gerald W. Page also provided the title. This is the only Dark Agnes story to include a fantasy element, in the form of a sorcerer. It is not written to the same standard of the two stories Howard completed, and features some departures from the established character, making her more stereotypically feminine.