One in Darkness

From YSDC Wiki
Jump to: navigation, search


Included in "Great Old Ones"

Pages: 12

Author(s): Doug Lyons with L.N. Isynwill (aka Lynn Willis)

Artist(s): Tom Sullivan

Setting: 1920s

Appears in: The Great Old Ones (Supplement).

Campaign: Some of the different scenarios in this book are very loosely connected and could conceivably be run as a campaign of sorts.


Headlines in the local Boston newspapers are abuzz with details of an enormous battle between police and gangsters in the city. Casualties were extraordinarily numerous on both sides. Some days later a second odd newspaper article emerges, speaking of death threats made against two separate Boston art dealers ... though, this latter story is later retracted as a hoax. On the same day the retraction appears, the Investigators are contacted by the journalist who wrote the "hoax" article with claims that the tale was true, but victim to a police cover up.


Link to outside reviews or helpful pages.

Spoilers - Keepers Eyes Only

Players should not read any further.


 Spoiler Section (Highlight to Read)
This investigative scenario revolves around a Bostonian mob known as the Crimson Gang, and in particular around the actions of young mob leader Patrick Malone. Malone's mother, in a misguided effort to "protect her boy", taught him a Mythos spell to summon "The Black Angel", actually an avatar of Nyarlathotep. Trapped in a confrontation with the police Malone panicked and cast the spell resulting in the reported massacre (on both sides). Of the fleeing gangsters, one understood what Malone had done and stole the pair of tablets which Malone's mother claimed controlled the "Black Angel", selling them to a fence who sold them on to two separate art dealers. Meanwhile, the Black Demon still haunts the sewers of Boston and is hunting down these artifacts.


Player Handouts: Six newspaper articles, a hand-written note

Locations: Boston

Creatures: Nyarlathotep, in his guise as the Black Demon

Tomes and Artifacts: N'gral Khul (Talons of the Dark), two red leather talismans, two tablets with powers over the Black Demon, Book of Eibon

Campaigns / Scenarios: Suggestions are offered in The Great Old Ones (Supplement) about linking its various scenarios into a very loose campaign.


Scenario includes a new spell write-up for "Wrack" and statistics for the Black Beast (a "Lesser Avatar" of Nyarlathotep).

Keeper Comments

 Spoiler Section (Highlight to Read)
The SAN loss for the creature is probably too high - consider reducing it. Without magical weapons, the party will have a very hard time fighting it. A very promising follow-up adventure might involve Mav trying to 'tag' investigators with Talismans during the day, and the party fleeing from the teleporting Beast at night. She could use mind-controlled members of the public to do this, or create traps in her apartment.