Atherium
 

I can't get out of the green tube to the blue room to get the Tool from Beyond. I swim up to the blue room but can't get out into the room. I noticed some tunnels in the cube. Do these lead to the blue room? Don't know what to try next. Can you help? Thanks. Don

I think that in the Aetherium, there are four tunnels at N-E-S-W, they all lead to different places, there are strips to represent each tunnel, Blue, Purple (I think), Orange, and Green. The blue I think leads back to the candle holders from Tian Shan River. And I think the Green one leads to the Blue room... yeah that's right!