Return from Darkness

The Return from Darkness Easter Egg (also referred to as the School Easter Egg or the Dark Rising Easter Egg,) is the major easter egg in Schule der Untoten. It is a monumentous eight step easter egg that allows you to go to different areas outside of the map, looking for a way to slow down the zombie invasion. After completing the easter egg, the Perk Booster Machine is unlocked for use via a key.

The transcript for the easter egg is found here.

Step 1: Getting Started
For this step, all of the players must be on the second floor, in the 5th grade science room.