Chimney

Chimney is one of the rooms in Aeternis.

Layout
This is part of the smoke venting system inside Aeternis, converted as an emergency exit route. By using the Holy Grail on the plate inside the poison gas room, you can access it. The chimney is a bit of a maze, filled with scorpions that can kill you in three hits. Simply run through it as fast as possible to reach the exit.