The continental shelf is a rock structure, and the sea tribe naturally knows and determines that the rock structure below is very strong before they will set up camps, but for Wang Hui, the rocks are not very strong, and there are many things in his hands that even steel can be arbitrarily deformed.

At the earliest, the exit of the underground train base of Huodao was not opened up by the ventilation port that went straight up and down, or the underground karst cave with twists and turns was detected, this karst cave Wang Hui personally detected, the structure was very unstable, and the final exit was also under the seabed, in fact, the karst cave was under the continental shelf.

Most of the cave passage passed under the continental shelf, and after the exit was determined to set up the battlefield on the fire island, the exit was immediately closed, and Wang Hui also deliberately found a lot of marine vegetation to cover it up.

Waiting for the excavation of the underground hole, the detailed geological structure map here was also scanned by the way, Wang Hui looked at the location of the cave, and the geological structure is just right, I have to say that luck is sometimes very good for himself.

Generally speaking, the most important thing is the load-bearing wall, which constitutes the spine of the house, without it, then the house is a pile of mud, and in the building, it is generally used to build the main load-bearing wall, which is the spine of a house, representing how high and wide the house can be built.

And many demolition and construction, those high-rise buildings fixed-point blasting, in fact, is in the main load-bearing beam of the building, the use of its own weight, control the detonation position, you can skillfully call and control this force, of course, this requires very complex calculations, design to many factors, including wind direction, housing structure, geological bearing.

And Wang Hui staged a scene of fixed-point blasting this time, using a complete geological map of the karst cave structure, on some relevant bearing points, plus explosion talismans with different delay times, and finally it was naturally detonated.

With the burning explosion of the sea of fire above, the sound of the explosion talisman detonating in the underground cave was perfectly concealed, and first several main bearing points were destroyed, and a large amount of explosion impact and sediment destroyed the stability of the cave.

Then, the explosion talisman was detonated one after another in several azimuths on the edge, which made the collapse of the cave directly delineated, just like the outward power was tied up by a direct sleeve.

The result is that within a certain period of time, because of the interaction of forces, the cave can also ensure that the continental shelf above it can be supported, and in less than a minute, the force dispersed extremely quickly accelerated the speed of the original slow collapse by more than ten times, as if suddenly, the logistics camp of the sea tribe was gone, leaving only a deep cave in place to continuously absorb the surrounding seawater and fill.

Of course, the plan is not limited to this point, and the Sea Clan Legion, which has nearly two million people, will not have only such a front-line camp, and there will be a logistics camp every one nautical mile between the beach and the largest camp in the open sea.

Many people have heard of sonic fishing, which is the use of ultrasound to directly destroy the brain cells of fish, especially the ultrasound penetration ability is very strong, and its effective range is also very shocking.

In fact, high-intensity pulsed ultrasound waves are not only created by humans, many volcanoes and earthquakes erupt, will produce a lot of ultrasound, but because the ability of ultrasound to penetrate bones is relatively weak, so human damage is relatively small.

In the same case, Wang Hui directly used the ultrasonic waves that would have been generated to lead to the sound wave guidance circle and expansion circle that had been buried in the seabed silt.

An ultra-high-intensity ultrasonic release with accurate positioning was channeled out, and the original flagship General Shang Xunke was still surprised by the disappearance of the forward logistics camp, and suddenly found that the sea soldiers around the camp were beginning to faint continuously, accompanied by convulsions of limbs, and the impact of five-hole bleeding was not a good thing.

The range soon spread to the large camp behind, and along the direction of the march, the ultrasound wave of reverse invasion swept all the way and swept all the way, regardless of whether it was high or low, and many weak Sea Clan soldiers only felt a tingling pain in their brains and sank directly to the bottom of the sea permanently.

General Xun Ke was furious when he saw the situation, and several lieutenants on the side were sent out to control the defense around the camp, but this phenomenon that was beyond the imagination of ordinary people caused many memories of the Sea Clan.

"That's the Sea Devil's death call, ah, I don't want to die. "An old sea tribe couldn't bear the pressure at first and began to vent loudly, and at the same time involuntarily rushed to leave the camp.

At the same time, many of the sea tribes heard at the same time seemed to have only discovered at this time, and more and more sea tribes began to flee the camp, and the generation of ultrasonic waves itself was a natural phenomenon.

In the past, submarine volcanic eruptions or earthquakes would also cause the unprovoked death of the surrounding sea clans, and the ignorant sea clans naturally blamed it on the death call of the Sea Demon King, once it appeared, no one could be spared, even if there were advanced Sea Clan monks, they could only feel an invisible force invading by, and the power that could not be captured was more certain of the Sea Demon King's deterrent power.

A large number of sea tribe soldiers began to flee to the outskirts of the camp, and several adjutants who followed General Xun Ke's orders happened to bring people over and collide, and suddenly the camp gate was crowded.

The first to bear the brunt was a large group of people blocking the door, a large group of soldiers who were still blocking the gate of the camp under the command of a few adjutants, and suddenly they bled together with a few adjutants, and fainted directly to the ground, and continued to extend into the camp.

This time it detonated the entire camp, and the Sea Clan Jindan Monk, who had a high level of cultivation, directly abandoned his subordinates and ran to the fleet in mid-air, and the ultrasound was generally in one direction, not three-dimensional.

And more Sea Clan soldiers directly broke through the fence around the camp and fled from the camp as fast as possible, and there were constantly shouting loudly about the Sea Demon King's death call around the vicinity, constantly destroying the thinking ability of these Sea Clan soldiers.

In the end, all the Sea Clan soldiers who left the camp fled the sea directly, for them, this is the place of death, the place where the Sea Demon King performs his death summon, and no one is spared.

In the flagship command room of the Sea Clan, General Xun Ke gradually calmed down his anger, and now it is useless, countless Sea Clans below are fleeing, even if he gives an order to ask them to come back, they will probably not obey, they have collapsed from the spirit.