Notes:
Cover credits confirmed by Comic Reader #124. [MN-12/2006]. This issue was originally scheduled to contain a Captain Marvel Junior story too, and house ads for it show him on the cover at the rear of the sleigh. However, page counts dropped, and he was eliminated from the cover.
Notes:
This story was originally 3 pages in House of Mystery #191. The added splash/introduction page is by Howard Chaykin, reprinted in altered form from Forbidden Tales of Dark Mansion (DC, 1972 series) #15 (March 1974) with image of Cain (in lower right) by Berni Wrightson pasted in from the Wrightson splash page in House of Mystery (DC, 1951 Series) #211 (February 1973). "House of Mystery" was added across the top of splash page.