"This is the location of that passage, fifteen kilometers from the South Sea Coastline..."
At that moment, Helinta's voice rang out.
At the same time, a satellite image appeared on the massive projection screen in front of them.
The image was crystal clear. On the surface of an otherwise calm sea, a massive whirlpool slowly spun.
Unlike an ordinary typhoon, this whirlpool remained stationary, showing no signs of moving.
"The Earth Core Passage is a phenomenon caused by shifts in Earth Star's crust.
As time passes, these passages can close at any moment. The shortest-lived passage in history remained open for only thirty seconds.
However, there are some exceptions.
For example, the Tebula Gold Mine passage, which opened over a hundred years ago, still exists to this day.
As for this current passage, instrument readings indicate that it is continuously growing in size.
