Gustav started walking on this pathway which he could see leading to a dark tunnelway up ahead.
Gustav walked through it and kept on walking for a few seconds before he arrived at the end of the tunnel way, where there was a massive outline of a door.
However, the metallic door-shaped structure constructed on the wall gave Gustav a kind of sense of crisis, so he stopped several ten feet away to observe it properly.
God Eyes had improved so much at this point that Gustav could practically see through anything as thick as fifteen inches.
However, even after activating God Eyes to stare at this massive metallic door, Gustav couldn't see a thing.
Other objects or structures in the vicinity still had some kind of colors, but this particular metallic door didn't have anything like that.
It was just dark through and through, almost like it wasn't made of any material that existed on earth, which made Gustav feel a little strange.