The rulebook for Masks of Nyarlathotep - Prelude Cards - Page 4 states

Four Preludes in this expansion (Beginning of the End, The Dunwich Horror, Twin Blasphemies of the Black Goat, and Call of Cthulhu) originally appeared in previous expansions (Mountains of Madness, Strange Remnants, The Dreamlands, and Under the Pyramids respectively). If playing with those expansions, do not include the duplicate Preludes in the Prelude deck.

However the Twin Blasphemies of the Black Goat Prelude have been corrected according to the Errata. So it's not a duplicate it's a correction and really they should have included this twice.

And The Dunwich Horror Prelude had the word Glamour removed. This change was not listed in the Errata. So again not a duplicate.

After resolving setup, each investigator gains 1 Glamour Spell. Then, if Yog-Sothoth is not the Ancient One, spawn the Dunwich Horror Epic Monster on Arkham.

What's going on?

  • 2
    I don't quite understand your question here but generally, when referring to duplicates Eldritch Horror means the card title specifically, not necessarily the entirety of the card's contents. Commented Dec 18, 2021 at 1:56
  • It's a duplicate in title only, that explains it. Thanks. I'm guessing Glamour was removed because MoN doesn't have Glamour spells. Curious that they choose to put a SR logo on the card as this will make it really difficult to put it back in the MoN box post game.
    – Snæbjørn
    Commented Dec 18, 2021 at 12:00

1 Answer 1


Generally, when Eldritch Horror refers to duplicate cards, it explicitly refers to the title of the card, not the entirety of the card's contents. Additionally, if a board game replaces a card because of a typo or explanation update, it's recommended to remove the original card entirely for the updated card.

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .