She knew Earth had another high-tech nation, Wakanda. Even Wakanda had never invented a device like this, yet Mercer had one. Just how advanced was the technology of the faction he had mentioned?
The most powerful satellites every country currently possessed were all massive, heavy machines.
The four things Mercer had tossed out weighed less together than a single component of those satellites, yet they could monitor the entire Earth?
After he released the Eye of Surveillance, the global surveillance network activated by the Southern Heavenly Gate appeared in Mercer's eyes.
The entire Earth lay before his gaze.
Populated areas, uninhabited regions, and even hidden, highly classified objects-Mercer could see them all clearly now.
These things are pretty impressive. Covering the entire solar system wouldn't be difficult, Mercer thought.
The Eyes of Surveillance had been created using the Southern Heavenly Gate. As long as Mercer remained alive and the Southern Heavenly Gate stayed open, they would never perish.
They would not disappear just because someone stood on them or hit them a few times.
These were not pieces of game equipment. Although they were not specialized defensive items, their durability was still terrifying.
Arranged in a few rows, they could even serve as heavy shields against laser cannons.
With global coverage established, Mercer watched the water screen and asked the Ancient One without turning his head, "When do you think the zombies will find this universe?"
Watching the red light flash rapidly on the water screen, each flash representing another jump, the Ancient One gave her estimate. "It won't take long. Probably... within seven days!"
That figure was startling enough. After all, they were jumping between universes, and unlike Mercer, they had no endless energy supply to power those jumps.
Their speed alone showed that their energy reserves were immense.