I Have a Mansion in the Post-apocalyptic World

Chapter 1261-1270

1261 Another Piece of Memory

Mars colony.

Near Mine 071.

Near the long-abandoned mine, there were a few new tire marks.

Two armored vehicles and a reinforced engineering vehicle were parked by the sand dunes about 100 meters away from the mine. The overturned rover was not far away, and traces of the Devil Worms' bite marks were still visible on the chassis.

Zhang Hai looked out the window, then pressed a button on his helmet and got in touch with the coordinator on the Expedition.

"...we have reached the target area, requesting airstrike support."

"This is the Expedition, the airstrike request has been approved, please place the airstrike beacon within 30 seconds."

"Roger that."

Soon, the top cover of an armored vehicle popped open, and a soldier leaned out half of his body, took a flare gun, and pulled the trigger at the dune on the other side.

The red beacon plunged into the sand dunes and transmitted coordinates to the missile that was falling from the synchronous orbit.

Soon, a black spot that dragged a long flaming tail gradually appeared in the sky.

Before the black spot became clear, the soldier got back into the vehicle and closed the top cover with force.

"BOOM——!"

The tremor was sent up from the ground into the vehicle.

The howling gravel blew the sands hundreds of meters away and covered the entire convey with a thick layer of sand.

Soon, from deep underground, there was another muffled noise.

The bursting flame engulfed all the tunnels inside and completely flushed out the area.

The convoy continued to move forward for about ten meters.

The engineering vehicle stopped first. The staff inside operated the robotic arm, took out a four-meter-long pyramid, and placed it on the sand. The two armored vehicles surrounded it while the electromagnetic pulse cannon on top carefully watched the surrounding for possible threats.

Their task today was very simple.

There was a total of four pyramids that must be pushed into the ground, then their mission would be completed.

"Are you sure this thing is really useful?" Inside the vehicle, Zhang Hai looked through the sight glass and watched the mechanical arm slowly push the pyramid into the ground inch by inch, as he couldn't be convinced by the usefulness of this action.

"It is useful in theory."

Wang Qiang, who sat across from the Marine Corps Captain, looked at the tablet in his hand, and while he browsed the manual data on the screen, he casually responded, "They are like bats at night, and all we have to do is get a few high decibel speakers, bury them into the ground, and make noise into the ground ten kilometers below without interruption for 24 hours. If I am those bugs, I will definitely not want to stay here."

Celestial City Research Institute explained that the latest task of the front-line researchers was to find this frequency through trial and error.

These pyramids were originally used to survey and map the geological information of the mantle circle. After several researchers' modification, they turned into a seismic wave transmitter used to make "noise" at different frequencies.