Portal: Activation of Sector B mod

In 1977, during the decline of Aperture and the rise of Aperture Laboratories, Edward applies for testing of a new development in Sector B, called the Aperture Long-Term Preservation Room.

Upon arrival, he hears the voice of a man named Elevar Shaft, then in charge of Sector B, who assures that “there is nothing to be afraid of. You will simply pass a couple of tests before preparation, and then you will fall asleep for 50 days, after which you will be woken up and put back into sleep for 50 days. We have already achieved stable operation from the project, so there should be no problems."

The first awakening went as predicted and Edward, having completed all the procedures before continuing testing, falls back into sleep... but... it seems that something went wrong...