It seems that you're using an outdated browser. Some things may not work as they should (or don't work at all).
We suggest you upgrade newer and better browser like: Chrome, Firefox, Internet Explorer or Opera

Can anyone tell me what I am triggering when i use the cash register in the first station?
I hear something opening, but ????
The middle bookshelf drops halfway into the floor. There's a compartment with night vision goggles in the wall behind it.