Create a Dynastic Rule titled “Personal Keys” with the following text:

Each Guest has a personal family key, which was given to them due to Cartlesham family tradition. These keys are named after them. A ‘matching key’ to something is defined as a key with the same name as that something.

Create a Dynastic Rule titled “The Fusebox” with the following text:

Lord Cartlesham treasured his family, and tried to engrave as much of it into his possessions as possible. His fusebox is no exception. The fusebox has a chain of switches in it, which are sealed by specialised locks. These switches are named after each Guest.
These switches can be either set to ‘ON’ or ‘OFF’. Their state is privately tracked by the Executor.

Whenever the lights go out, all the fusebox switches are set to ‘OFF’ and the Executor shall choose randomly (in whatever manner deemed suitable by him) four fusebox switches; The first three of these switches may be referred to as ‘vital’ switches, while the last one is a ‘dead’ switch.

If after the change of any of the switches’ state all the vital switches are set to ‘ON’ and the dead switch is set to ‘OFF’, the Lights come back On and the remainder of the current Dark List is ignored.

Put the following in the place of the Dark Action “Repair the fusebox” in Rule 2.6 Lights:

Switch a fusebox switch. If they are in the Basement, each Guest may, as a Dark Action, switch a switch they have the matching key to. They may switch it to ‘ON’, ‘OFF’ or ‘MANIPULATE’. If they switch it to ‘MANIPULATE’, it’s state is set to ‘OFF’ but the states of the fusebox switches with names which precede and follow the name of the switch in alphabetical order are set to their inverse (‘ON’ set to ‘OFF’, or ‘OFF’ set to ‘ON’).