Climbing! And another hallway and a door and—

"Congratulations, you have found the dual portal device."

And there is indeed a shiny portal gun on a pedestal in the room there.

How far from the door is it?

Perhaps four feet?

Close enough to grab with the NFCS without actually going into the room, then.

Yup! She is now the proud owner of the dual portal device.

"Now please proceed through the exit." There are some noises outside, and when she checks she'll see the hallway's been remodeled to block the way back whence she came.

How thoroughly?

There is a wall.

But is it, like, a thick wall?

It's... a sturdy wall.

Hmph.

The wall is indifferent to her plight.

Fucking hell.

The hallway continues on the other side, though, leading to more regular doors, as well as a very sturdy reinforced metal one at the end.

What are the doors hiding? More offices?

More like observation rooms, overlooking what are probably test chambers.

Observation rooms without observers.

What was even the point of watching people push buttons?

Well, some of those chambers are more complex. One of them has a deadly-looking laser.

It's about six inches off the ground and isn't even moving.

This is true!

This other one has a sphere made of pure energy.

...Why?

Who knows. It's shot from a metal hemispherical thing with metal arms and then bounces between the wall and back, fading away until it fizzles, at which point a new one is shot.

This place is fucked up.

Mmhmm!

There are several of those observation rooms and finally a door that leads to an elevator.

Is the elevator there?

Yep.