This campaign aims for strong period realism, with any deviations or anachronisms inserted purely for greater playability or to accommodate the Mythos situations. The following sources (among others) have been used by the Keeper in the game’s design¹.

Fiction Novels & Stories	Reason Used	Availability
“Sherlock Holmes” Stories by Sir Arthur Conan Doyle	Amateur Investigator, Mystery, Era	Free from Gutenberg
“The Moonstone” by Wilkie Collins	Amateur Investigator, Mystery, Era	Free from Gutenberg
Various Stories and Poems by Edgar Allen Poe	Victorian Horror, Era, Murder, Mystery	Free from Gutenberg
Various Novels, Poems, and Stories by Oscar Wilde	Ghosts, Madness, Victorian Horror, Murder, Era	Free from Gutenberg

Non-Fiction Books	Reason Used
“The Suspicions of Mr. Whicher” by Kate Summerscale	True Crime, Era, Insanity, Common Law, Police
“The Devil in the White City” by Erik Larson	USA, Industry, Era, True Crime, Insanity, Serial Murder, Secret Rooms

Online Sources	Reason Used
The Museum of Mourning Photography	Death Photographs, Fashion WARNING: CONTAINS ACTUAL PHOTOGRAPHS OF DEAD PEOPLE, INCLUDING CHILDREN. May disturb some viewers.
Morbid Outlook- Victorian Mourning Garb	Customs, Mourning, Fashion
A 1901 article on mourning from “Collier’s” hosted at Quilthistory	Customs, Mourning, Fashion
Silent Ladies & Gents	Players are encouraged to choose appropriate character images, and despite being 20 years late, many of these work well.

¹ This list excludes Lovecraftian and Chaosium sources; those are assumed.