| Issue | #221 |
| Published | December 1973 |
| Frequency | monthly |
| Cover Price | 0.20 USD |
| Pages | 36 |
| Editing | Joe Orlando |
| Notes | Issue may contain the Mark Jewelers insert. |
| Pencils | Bernie Wrightson |
| Inks | Bernie Wrightson |
| Reprinted | in Showcase Presents: The House of Mystery (DC, 2006 series) #3 |
| Script | Mike Fleisher; Russell Carley (art continuity-see notes) |
| Pencils | Frank Thorne |
| Inks | Frank Thorne |
| Notes | Russell Carley produced breakdowns for Fleisher's scripts, as confirmed by Michael Fleisher. |
| Reprinted | in Showcase Presents: The House of Mystery (DC, 2006 series) #3 |
| Genre | humor |
| Pencils | Sergio Aragones |
| Inks | Sergio Aragones |
| Reprinted | in Showcase Presents: The House of Mystery (DC, 2006 series) #3 |
| Script | Len Wein |
| Pencils | Berni Wrightson |
| Inks | Mike Kaluta |
| Notes | Cover story. |
| Reprinted | in DC Special Blue Ribbon Digest (DC, 1980 series) #17 (January 1982); in Roots of the Swamp Thing (DC, 1986 series) #4 (October 1986); in Showcase Presents: The House of Mystery (DC, 2006 series) #3 |