I totally missed the light system the first time. I managed to open the chest now. But I still think a have done something wrong. The first pressure plate on the right deactivates the first watcher on the left side. But the first pressure plate on the left side doesn't seem to do anything. I had to use my rogue's Walk In Shadows ability to deactivate the last two plates. Did I miss a switch somewhere or is it a bug?
Sometimes bottom-left sentinel when turning sees you, when you going to push second plate, so you have to clear rooms again and restart
