Step into a world of gas lamps, hidden societies and unspeakable truths. Cthulhu by Gaslight transports the classic Call of Cthulhu experience into the shadowed streets and fog covered alleys of the Victorian era.

This Keeper's Guide arms you with everything needed to create investigations where manners conceal monsters and scientific progress brushes against ancient horrors.

Features:

• Comprehensive Victorian era setting guidance

• New investigative opportunities and atmospheric locations

• Expanded resources for creating memorable mysteries

• Keeper tools for running gothic horror campaigns

• Rich historical flavour infused with cosmic terror

In the age of discovery, some doors should remain closed.