 The first issue of "Madame Xanadu" bore little difference from an issue of "Doorway to Nightmare".There were several requests to reprint it in letter columns of "The Spectre", but they were refused because that issue gave little background as to her character, although it did introduce Ishtar to the DC Universe, who dated Destruction.Madame Xanadu was a regular supporting cast member in volumes 2 and 3 of "The Spectre", those versions written by Doug Moench (31 issues, 1987–1989) and John Ostrander (62 issues, 1993–1998).