It wasn't a beast that rushed up below, just a mouth full of sharp teeth, and it didn't even have a head. The middle of the big mouth is pitch black, as if connected to hell, eerie and terrifying.

Pu Sen's pupils contracted, and he slapped down with one palm, and the energy was released, and he slapped heavily on the open mouth, and with a bang, the big mouth turned into a sky full of yellow sand and scattered.

However, his crisis was not over, and at the same time, a large mouth appeared on his left and right, rushing towards him.

Pu Sen's body turned sharply, and with two more palms, he beat his big mouth into loose sand.

"Whew~" He breathed a sigh of relief, it was too dangerous just now, the big mouth appeared unusually abruptly, it just came out of thin air, and he almost didn't react. Fortunately, this thing is not good at defense, otherwise he will never be able to stop the siege of three big mouths.

At this time, there was an exclamation behind him, and when he turned his head, he saw countless large mouths forming in the sky, pounced on those sixth-level martial artists.

......In a series of muffled sounds, the big mouths broke one after another and were beaten into scattered sand. But there were still many who rushed to the front of the warrior and bit it.

"Click!" the sound of the teeth closing, and then the big mouth dispersed into yellow sand. The warriors who were bitten were fine, they were just stunned, they all heard the prompt of the watch, and they were eliminated.

Seeing these people untie their watches in frustration, Pussen's heart that had just been put down lifted again, as long as he was bitten by a big mouth, it would be the result of elimination, no wonder he would remind them that the desert was dangerous before setting off.

The other sixth-level martial artists also had solemn expressions, this kind of big mouth looked very easy to deal with, but as long as they were not careful, they would be eliminated, and this thing appeared so suddenly, no one knew where it would come out.

The fifth-level martial artist below galloped quickly, trying to run out of the quicksand range. Nearly three million people released their energy, the banging sound was endless, the yellow sand was covered with poplars, the desert seemed to have turned into an ocean, and the sand waves rolled. Due to the sharp drop in visibility, the vast majority of people didn't notice the big mouth that appeared in the sky, let alone the sixth-level martial artist who was eliminated first.

However, Yang Dongqing, who was running at the front, saw it, and couldn't help but be secretly frightened, these big mouths were formed by energy mixed with yellow sand, and he could feel strong energy fluctuations from afar.

"Is it still possible to carry out this kind of operation in the secret realm?" Yang Dongqing secretly exclaimed in his heart, feeling more and more that the secret realm was similar to the seed space.

And at this time, in the high air, Pu Sen, Bestin, Kamiami, and other sixth-level martial artists all rushed down. They have realized that it is more dangerous at high altitude than on the ground.

Of course, they rush down does not mean that they have to land on the quicksand, as long as they fly low to avoid the attack of the big mouth.

Sure enough, when they lowered to a certain height, that big mouth no longer appeared.......

The quicksand is expanding as if it is about to spread across the desert, and the further people rush forward, the harder they feel, and the speed of gravity increases too fast.

Yang Dongqing had already escaped from the range of quicksand, and he was the first to run in front, and his most obvious feeling of the change in gravity was almost doubling upwards in a geometric progression. In just one minute, he went from four times the speed of sound at the beginning to quickly drop below the speed of sound. At this time, he felt that the gravity he was subjected to had reached more than a thousand times his own, and it was still growing.

Under such gravity, he expended a huge amount of energy with every step he fell, using the force of recoil to offset his own weight. And what surprised him was that with such a huge gravity, the sand was still soft, as if it was not affected by the super high gravity.

"Bang!" As soon as his foot fell to the ground, Yang Dongqing stopped suddenly, and just five meters in front of him, a big mouth appeared on the sand, which was full of sharp teeth.

Yang Dongqing frowned and walked around from the side. At this point, his speed slowed down completely. In order to avoid the big mouth, he used his listening skills to the extreme, carefully feeling the energy fluctuations under his feet and around him.

The large mouths that appear on the ground one after the other, completely irregular. At the same time, there are strands of sand twisted like plant vines to attack.

Yang Dongqing's speed was already slow at the moment, and he had to constantly deal with attacks, which was simply difficult to move an inch. If he hadn't been able to sense the energy fluctuations in advance, he wouldn't have been able to dodge the endless attacks at all.

"If this trend continues, there is no way to escape when the quicksand spreads. Yang Dongqing smashed a big mouth that rushed over, turned his head to look behind him, and saw that the sand was flying in the distance, and it was rapidly approaching him.

"You have to overcome gravity, otherwise you won't be able to get up and sooner or later you will be drained of energy by the continuous attacks. Yang Dongqing said secretly, recalling the exercise map he gave when he entered the desert. He knew that this exercise must have an effect, otherwise with the current difficulty, no one would be able to cross the desert at all. And gravity is still increasing rapidly, and almost every step forward, gravity rises by a large margin.

Taking a deep breath, Yang Dongqing recalled the lines of different waveforms, and his mind led to spiritual power to vibrate according to the frequency of that exercise.

Almost at the same time as he cast it at this frequency, the black streaks on the Shi Dan in his dantian began to writhe, and he immediately had a feeling that there was an invisible curtain in the depths of the earth, connected to his body, and he continued to slide down this curtain.

"Is this gravity? Is this curtain a gravitational wave formed by graviton exchange?" Yang Dongqing was suddenly stunned, he didn't know why he had this idea, as if he had a realization when he felt the curtain, knowing that it was a gravitational wave.

The exercises continued, and the black stripes on the inner dan moved faster and faster, fluctuating almost at the same frequency as the exercises.

At this time, he suddenly felt that the curtain that was sticking out of the earth was weakened, and it began to decrease rapidly. At this time, his body gradually relaxed, and the pressure became less and less.

"I see, this exercise is to eliminate gravity. Yang Dongqing said secretly.

The next moment, his speed increased again, and the starry streamer was used, and a figure rushed forward, bringing a yellow sand earth dragon behind him. Those big mouths that appeared couldn't catch up with his speed at all, and as soon as they appeared, Yang Dongqing ran away.

And at this time behind him, the number of eliminated was increasing dramatically. The growth of gravity affected them too much, and many people quickly ran out of energy and fell into quicksand.

Even those sixth-level martial artists couldn't withstand the strong gravity and fell on the sand. But they were okay, after all, they flew fast and didn't get stuck in the quicksand.

At this time, someone finally thought of the exercises on the big screen before departure, and they mobilized their energy and operated according to the fluctuating frequency.