Back from my personal sabbatical.
This introduces us to combat. Or an introduction to the combat scene if you wish to close the door and explore the stairs first (I won't hang people up on this since I skipped the last week; they lead to the upper balconies of the room ahead and the locked projector room).
Each character can take up to three actions. If you want a definition, consider an action being "something that could change the state of something else." Moving around and speaking are free as are things that wouldn't really alter the scene in meaningful ways.
If you extend yourself to do something beyond your limits/do things in absolute desperation, that takes two actions.
You don't have to take three actions. Any unused action means that you're better prepared to react to what the enemy is doing (as you're not overextending yourself).
If you're undetected, you can take one really good action (that would reveal you) for free and the supernatural won't be able to harm you for it. Alternatively, you can ignore this and just do 3 actions like normal, but the enemy will respond normally as well.
If everyone's undetected, you can just leave the encounter. Might be important in the future, might not be.
There's three enemy types. Elite, greater, and lesser. Elites have special properties (as written), greater entities are just strong bunguses, and lesser entities are mooks to balance the action economy. If you attack an elite or greater, you write an attempt (ex. you swing at them). If you attack a lesser, you can just straight up kill them in whatever way you want.