MAP13: An Unknown Hour (Zones of Fear)

MAP13: An Unknown Hour is the thirteenth map of Zones of Fear. It was designed by Vasek Havranek (Damned) and uses the music track " ".

Secrets

 * 1) Head to the northernmost switch, which lowers the windows on the sides of the hall. If you look through the windows that are nearest to the switch, you can find green buttons behind the fences. Shoot them both to lower the walls leading to the areas behind the fences, which can be accessed by heading south to the fork in the hall. The left side contains a BFG9000. (sector 580)
 * 2) See Secret #1. The right side contains a plasma gun. (sector 618)

Current records
The records for the map at the Doomed Speed Demos Archive are:

Things
This level contains the following numbers of things per skill level: