Yishan City

The convoy continued for more than a hundred kilometers through dense mountain forests teeming with exotic beasts. Though this was The Inland, the High Walls stood one or two hundred kilometers apart, and no one dared develop the land recklessly.

After all, every High Wall had to be built on a node of the Dragon Vein—the earth's energy system—to use it to conceal their presence.

The Inland was roughly an endless green wilderness dotted now and then with High Walls. Humans were more like animals protected in a zoo.

Still, exchanges between the High Walls of The Inland were frequent, and experts could support one another when necessary.

Besides, humanity still possessed technological weapons and occasionally excavated useful things from ruins, so the overall living environment was fairly decent.

Yet even in this relatively decent environment, Chu Fei and the others never stopped. More precisely, they did not dare stop.

While Lord of Thunderclap had still been alive, Chu Fei had figured out why Lu City existed—experts had to keep moving at all times, at a speed of at least five meters per second, and stay in any one area for no longer than half an hour whenever possible.

From the perspective of the Higher-Dimensional World, or the Inner World, a group of experts gathered together had exceedingly conspicuous Soul Fires and could easily be located. The shortest interval before an alien descent was half an hour. The longest was uncertain; they might even remain undiscovered.

Chu Fei was rather curious about how the Higher-Dimensional World located this world and the like, but unfortunately, he had no way to experience it for himself now.

Sometimes, Chu Fei wondered whether experts from the Inner World could return to the Outer World by using this method.

He thought while observing the scenery