| Issue | #81 |
| Published | August-September 1969 |
| Frequency | bi-monthly |
| Cover Price | 0.15 USD |
| Pages | 36 |
| Editing | Joe Orlando |
| Characters | Abel (inset) |
| Genre | Horror |
| Pencils | Neal Adams |
| Inks | Neal Adams |
| Reprinted | in Showcase Presents: The House of Secrets (DC, 2008 series) #1 |
| Characters | House of Secrets (origin) |
| Script | Mike Friedrich |
| Pencils | Jerry Grandenetti |
| Inks | George Roussos |
| Reprinted | in Showcase Presents: The House of Secrets (DC, 2008 series) #1 |
| Characters | Abel; Cain |
| Pencils | Bill Draut |
| Inks | Bill Draut |
| Notes | First appearance of Abel in the House of Secrets title. Abel first appeared in DC Special #4 which has a date of July-September 1969, beating this issue by one month. |
| Reprinted | in Showcase Presents: The House of Secrets (DC, 2008 series) #1 |
| Letters | typeset |
| Notes | text |
| Characters | Abel (host); Cain |
| Genre | Horror |
| Script | Gerry Conway |
| Pencils | Jack Sparling |
| Inks | Jack Sparling |
| Reprinted | in Showcase Presents: The House of Secrets (DC, 2008 series) #1 |