| Issue | #1 |
| Published | October-November 1971 |
| Frequency | bi-monthly |
| Cover Price | 0.25 USD |
| Pages | 52 |
| Editing | Dorothy Woolfolk; Ethan C. Mordden (Assistant Editor) |
| Genre | romance; horror |
| Pencils | Victor Kalin (painted) |
| Inks | Victor Kalin (painted) |
| Colors | Victor Kalin (painted) |
| Letters | typeset |
| Notes | Art credits from Showcase Presents: Secrets of Sinister House (DC, 2010 series) #[nn] |
| Reprinted | in Showcase Presents: Secrets of Sinister House (DC, 2010 series) #[nn] |
| Characters | Rachel MacIntyre; Rachel's Father; Blair; Frances (Housekeeper); Jamie; Fred; Maggie; Alfie; Adrienne |
| Synopsis | After Rachel's father dies, Rachel moves in with her cousin's family who are all afflicted with a mental illness that her father was trying to create an antidote for. |
| Genre | romance; horror |
| Pencils | Don Heck |
| Inks | Don Heck |
| Notes | Chapter 1: "The Secret of the Castle" (6 pages), Chapter 2: "Twisted Love" (13 pages), Chapter 3: "The Madman" (6 pages) |
| Reprinted | in House of Mystery (DC, 1951 series) #225 (June-July 1974); in Showcase Presents: The House of Mystery (DC, 2006 series) #3; in Showcase Presents: Secrets of Sinister House (DC, 2010 series) #[nn] |
| Characters | Patience Worth; Mrs. Curran |
| Genre | occult |
| Letters | typeset |
| Notes | Set in summer 1913 in St. Louis, Missouri. |
| Characters | Louise; Tony; Elaine; Neil Anders (Ghost); Nicholas Anders (Ghost) |
| Synopsis | The ghost of Neil Anders tries to drive two lovers apart. |
| Genre | romance; occult |
| Pencils | John Calnan |
| Inks | Vince Colletta |
| Reprinted | in Showcase Presents: Secrets of Sinister House (DC, 2010 series) #[nn] |