This cover mimics the Paperback Library Gothic series that was popular at the time, including the oval over a gold background and rendering the series name in the font Cooper Black. Perform an internet image search for "Dark Shadows Marilyn Ross" to see a comparison.
Framing sequence.
Script credit per reprint in House of Secrets: The Bronze Age Omnibus (DC, 2018 series) #1.
Set in 1840.
Script credit per reprint in House of Secrets: The Bronze Age Omnibus (DC, 2018 series) #1.
2nd page of framing sequence.
Script credit per reprint in House of Secrets: The Bronze Age Omnibus (DC, 2018 series) #1.
Father John and Rabbi Samuel appeared next in The Sinister House of Secret Love (DC, 1971 series) #2 (December 1971-January 1972)
Last page of framing sequence.
Script credit per reprint in House of Secrets: The Bronze Age Omnibus (DC, 2018 series) #1.
Letters from: Mary Rinehart, Scott Huntley, Debbye Wright, Leslie Benedict, Arnold Bred and Abe.