Cthulhu by Gaslight: Keeper’s Guide transports you to the foggy alleys and candlelit parlors of Victorian Britain, where eldritch secrets fester beneath cobblestones. This complete sourcebook for Keepers includes setting lore, occult mechanics, gaslight-era Mythos threats, and two fully developed scenarios. Bring sinister stories of the 1890s to life in standalone or ongoing campaigns of historical horror.