Hub 4: Desolate Garden

Desolate Garden is a secret level in the fourth hub of Hexen. It is only accessible by crossing a linedef in the map Bright Crucible in the first hub and pressing a switch in the map Sacred Grove in the second hub, or by using the "casper" cheat code.

It is the 25th map in Hexen, but is named MAP26 in the WAD file.

Walkthrough
In this map, you can collect all three pieces of your fourth weapon, if you haven't done so otherwise.

When you start, you have to press all nine switches when they are raised; only one will be exposed at a given time, and when you pull it, a random monster will appear. After pulling the outer eight switches and then the middle switch, you will open the exit.

As you pull switches, parts of the map will open up. Since the switches are available randomly, it is by random chance that the paths open.

The left most portion of the map contains the two basic weapons.

Look for the three superweapon pieces here:
 * Behind the exit portal, where you overlook the main courtyard
 * In the eastern-most portion of the map.
 * After triggering and disarming the slime trap (by pressing the eastern-most switch), return to see the final piece of the weapon.

You will return to Forsaken Outpost when you go through the portal.