Treasure chamber

The "sewers" consist of a mess of water-filled tunnels connecting various cisterns. At first, I feared that we might need a boat or a flotation device to explore these canals. However, there are plenty of walkways over the water, most of which lead us to what I suspect was a control room in the center of the facility.

The room is sealed off, steel panels have been welded in front of the door, some warning scribbled on it. That is a good sign, and it even got better when we found a computer terminal that confirmed our hope: this place has also been used by the Order of Saint Tetrimon. The equipment clearly postdates the era of Mezagorm's building, and shows the hallmark logo of the Tetrimon. 

This must be the place where they hid the relics, perhaps even the Holy Ink of Saint Aloysius! But, try as we might, though, we could not open the door with the tools that we brought along. The crowbar broke. Also, the console did not work any more. Whether this is of old age or due to the biosphere's ability to render electronics useless is not clear. 

We will have to come back with some welding equipment of our own and drills, safely packaged in order to traverse the biosphere undamaged. But now that we have figured out a path through it and found our destination, we should be able to come back faster next time. So, we decided to head back to the Indigatrix, the necessary tools are certainly on board.