Chapter I: Invasion! | Documents and letters The Bureau Guide

Letter #1

Letter is at the screens.

First letter can be found in the room with screens, opposite to the elevator. To get there, you have to exit an elevator and go forward, entering the closest building.

Letter #2

This letter is easy to miss.

Second letter is left under the column in the laboratory. You get there a moment after meeting Faulke. But first you have to eliminate enemies in this room.

Letter #3

You could expect that.

Another letter lies on the desk in the room of stenotypist. Next to this location you will surely notice an alien device producing some unpleasant sounds.

Letter #4

You can skip that note in a hurry.

In the same room you can find the last one note - next to the door in one of open drawers.