Editing Demon: The Descent (section)

===Keys, Interlocks, and the Cipher===
Every Demon has a "Cipher", a set of four Key Embeds that link to each other to reveal a secret truth giving its holder a profound insight into their personal view of Hell. You start with the first one by default, but you have to figure out what the other three are on your own. That said, after any scene involving God-Machine related phenomena where you get a beat you make a special roll- if you succeed you can ask the GM for a hint as to what the next Key is. You can also test any Embed with your Cipher to see if it's a key- this does have the risk of causing damage or glitches if you guess wrong or end up discovering a key out of order, though. 

Linking two Keys together also creates an Interlock. An Interlock is a custom power that typically acts as a combination of the two Keys that compose it (either literally or conceptually). They aren't considered Embeds or Exploits, and by definition no two Demons will ever have the same Interlock even if the Keys composing them are identical. 

Some Demons believe there may be a fifth Key in the Cipher which might lead to greater revelations if discovered. But since almost every attempt to try and add a fifth Key ends in disaster for the dope who tries it, that probably isn't the case. The few times adding a fifth Key does sort of work (referred to as "the Pentagram"), it creates an entirely new set of Interlocks and a new secret truth which may or may not be nonsensical; the former are much more powerful than Interlocks usually are, but typically come with significant risks when used.