Lin Mo crouched down, picked up a carving knife, and began carving runes into the stone slabs.
This was work that could not be rushed.
Permanent Portals were different from temporary ones.
Temporary ones had simple arrays; they would close after a few days anyway.
For permanent ones, every rune pathway, every node position, and the orientation of every crystal differed, making them more complex and advanced.
The slightest error would leave the passage either unstable or gradually deteriorating until it failed completely six months later, unable to remain permanently stable.
As Lin Mo carved, he repeatedly checked the array's structure in his mind.
Time ticked by.
Secretary Li had intended to wait nearby, only to discover that the wait lasted several hours.
He simply took out his phone to handle other work, occasionally looking up.
Every time he looked up, the array's patterns on the ground had expanded another ring.
The entire array covered the square, a full forty meters in diameter and densely packed with runes.
Spatial Crystals were arranged within it according to a precise pattern, refracting a deep blue glow.
"Done."
Lin Mo straightened up, shook his aching wrists, and drew his Staff from his Spatial Ring.
Secretary Li immediately came over.
"Commander Lin, should we have a video call with Antarctica first?"
"To confirm where the Portal will open?"
Lin Mo shook his head.
"No need. I'll just open the passage."
"I need plenty of hands-on experience opening Portals right now. If the position is wrong, I'll close it and try again. It'll be good practice."
Secretary Li: "..."
"That's the spirit, Commander Lin!"
He gave him a thumbs-up, then turned, picked up the Satellite Phone, and dialed Chen Jianguo, the city lord of Tianyong Underground City.
"City Lord Chen, preparations here are complete. The