"Woooo~~~~~"
Almost in the very next second after Dr. Li shouted those words in panic, an urgent and ear-piercing alarm rang out over the entire Human Base!
After hearing the alarm, everyone in Base No. 1 paled and hurriedly put down whatever they were doing, rushing toward the nearest underground shelter!
Even the Warriors, Martial Masters, and Martial Generals were no exception.
Only the Martial Marshals and Martial Gods shot up from the ground, tearing through the air and rising into the sky. They gathered into a locust-like army and rushed toward Base No. 1's eastern wall at their fastest speed!
At this moment, everyone knew—the disaster had arrived!
Unlike the annual Fierce Beast Tides that struck the other bases.
Base No. 1 had no such thing as a Fierce Beast Tide. It only had the invasion disasters brought by powerful figures from the Alien World!
Moreover, these invasion disasters had no fixed timing.
Sometimes, they might not come even once in several years.
But sometimes, they would erupt every few days.
At their most outrageous, they would last for several months at a time... Before the alarm signaling that the crisis had been lifted sounded, everyone could only hide inside the underground city and await news.
"A large number of Martial Kings?!"
Meng Qianzheng's expression shifted slightly. With a flash of his body, he appeared directly two thousand meters above the center of the Virtual Net, his gaze looking far toward the east.
The center of Base No. 1 was at least several hundred thousand kilometers from the eastern wall... Even a Martial King would find it difficult to sense fluctuations of aura across such a distance.
And beyond the eastern wall, several hundred thousand kilometers away, stood a gigantic Spatial Rift ten thousand meters high, spanning heaven and