Turn around and try the office tower instead.

"I don't like this at all, Sara", you say. "I don't want to use this elevator down to... wherever that is. I feel trapped. Let's try the tower instead."

Sara purses her lips as if she wants to disagree with your suggestion, but nods finally. You trace your steps back to the entrance door and then carefully and again guarded by the shadows of the high walls sneak over to the tower. The front entrance is brightly lit, but there are indeed several backdoors. The first two are closed, but the third one, some kind of delivery entrance is unlocked.

Soon afterwards, the two of you quietly walk through the corridors, climbing stairs, carefully sneaking around corners... until you reach a floor that looks like an office level. Your first impulse is to run at the first desk you see and start the computer, but Sara grabs your shoulder and shakes her head.

"I am pretty sure they don't hide secrets here at the ordinary levels. We need to find the management floors. The top floors", she whispers.

You think about it and must admit that she's probably right.

So you work your way up. You don't dare taking the elevator, and climb the stairs as silent as possible instead. As seen from the outside, some rooms still have lights, and from what you percieve, there are indeed some few people still working at this time of the day. More reason to avoid them. Then again... maybe this is good news as well, because two women walking through the tower is not immediatly suspicious. Of course, the way you are "walking" kind of is.

You must be pretty high up already when you suddenly hear voices talking. Several ones. Sara glances around a corner, and quickly withdraws her head. Her eyes almost seem to gleam in the dark. "A whole group! Discussing something!", she tells you, triumphantly.

You could try to sneak up on those people to find out more. If they hold a midnight meeting, it must be important, right?