This is the Mine Fortress of Gu Country.
The entire mountain range was surrounded by such a sturdy fortress.
Saying that its defenses were even stronger than those of the Gu Country Imperial City was no exaggeration.
Lin Hao stood outside the fortress gate, looked up for a long time, and reached such a conclusion.
If he were to lead troops to attack the fortress, by the time it was breached, the Gu Country Soldiers inside would have had enough time to massacre all of the slaves within the mines.
Lin Hao was there to rescue people; inside this fortress, it was said there were at least three hundred thousand Earthling slaves.
Three hundred thousand, this number was not far off from the remaining population on Earth now.
Each person's life, in Lin Hao's view, was now incredibly precious and could not be lost.
On his way here, he had already decided.
To save people, one must first infiltrate the fortress; only then could the safety of the slaves be ensured.
