-- you'll come out of the office and see Niobe open a door in the opposite wall that you didn't know was there. How extremely suspicious!
Go to that wall to find an unusual little door puzzle. Read to the end of this hint for a step by step on how to open it.
The goal here, as Nancy says, is to manipulate the puzzle so only lightning bolts show. It's not real obvious from the interface, but what's going on here is that you have four wheels on top of each other.
From top to bottom, the wheel colors are silver, blue, yellow, green, and red. The red wheel doesn't move. To move the other wheels, grab the one arm that's slightly longer and drag.
Any way that you move the wheels that ends up with all the visible arms showing lightning bolts will open the door. Here's one way that I know works: