However, most people played fireballs, and the disciple who knew the secret technique of Fire Snake did not use the secret technique of Fire Snake. At present, everyone probably had one idea, that is, to preserve their strength. After all, most people's secret power has just been restored. If they cast a larger secret technique, it is difficult to guarantee that they will be unfavorable to the next trial. In their opinion, the main force to resist the fog in front of them should be three trial elders.

The three Trial Elders obviously thought the same way. Among these three Trial Elders, two are good at fire-type secret techniques. Immediately, the two Trial Elders used the Fire Snake secret techniques that everyone had seen before.

The aura of the fire snake cast by the secret master is definitely not comparable to that of the secret disciple, even if that secret disciple is enough to be called a genius. When breaking the secret formation, the fire snake cast by the secret disciple is only as thick as a baby's arm, while the fire snake cast by the two trial elders is as thick as an adult's thigh. The two aggressive fire snakes ran towards the fog, galloping all the way, and the whistling sound echoed in the secret passage, which was really extraordinary. The low temperature brought by the fog to the secret passage also eased, and everyone's bodies couldn't help but relax and began to look at the two trial elders with admiration.

The fog will disintegrate under the attack of two fire snakes, which is almost everyone's idea, including the caster himself. However, this is not the case.

After two huge fire snakes collided into the fog, sparks splashed at the beginning, and the sound of water vapor evaporated "squeaking", and the frost on the cave wall also seemed to melt slightly. However, the mist that was close to disintegration suddenly rushed towards the fire snake as if it had support. After wrapping, the fire snake struggled twice and was extinguished one by one. The black ice and black frost on the cave wall was still solidly condensed there like iron.

There was a big trouble now. As the three trial elders frowned, Chen Feng's heart also sank.

At this time, Chen Feng suddenly felt that someone was holding a corner of him. When he saw that it was Haoxue.

"Sister Haoxue, it's you! Do you know what's going on with this fog?" Chen Feng asked.

"I happened to know that there is such a thing on the mountain where our beast gate is located. However, this thing at the foot of our mountain was just formed, but it is much weaker than the fog here. This is called a hundred-year yin fog." Haoxue explained seriously, "The hundred-year yin fog is the condensation of the dead evil energy. Where the yin fog passes, black yin Xuan frost will be formed. The classics record that if the qi of the dead evil energy can exist for a thousand years, a thousand-year yin wind will be formed, and wherever it passes, black yin Xuan ice can be formed. In ancient times, black yin Xuan ice is like Taiyi Jingjin for secrets who practice the secret techniques of flying swords. Whether it is black yin Xuan Xuan, it is as important as Taiyi Jingjin to those who practice the secret techniques of flying swords.

The flying swords made of ice or Taiyi Jingjin are extremely sharp and full of killing. Especially when facing the flying swords made of black Yin Xuan Ice, as long as they are hit, the secret power will freeze. The yin fog in front of us only has a hundred years of climate, and the ones formed around them are only black Yin Xuan Frost, but it is not something that we secret disciples can deal with. The black silver Xuan Frost is extremely powerful. As long as they are touched, the secrets in the secret disciples will be frostbite. Mortals without secret power will be frozen to death when they encounter these fogs. However, it seems that the 100-year-old fog in front of us has not yet formed a large climate, and the three trial elders should still be able to take it."

After hearing this, Chen Feng couldn't help but frown, but said nothing, and looked forward with Haoxue.

Although the so-called century-old fog is just formed by the condensation of the dead evil spirit, it still reacts naturally after being attacked by the fire snake. The originally formed fog began to surge, and from a distance, it looked like a dragon dancing.

Haoxue suddenly grabbed Chen Feng's hand, and Chen Feng was stunned, and then he realized that his tentacles were cold. Almost all the disciples present felt the coldness ahead, and their bodies trembled. Chen Feng's hand was also quite cold, and he held it with Haoxue's hand. This was the first time Chen Feng held hands with the opposite sex, and Chen Feng felt that this was a strange feeling. However, the situation in front of him was relatively critical and not suitable for consideration of the romantic relationship. However, the slippery feeling was still deeply imprinted into Chen Feng's mind.

The trial elder who had not taken action finally couldn't hold back his breath. He pinched his hands with his hands and shouted in a low voice: "The Secret Art of Confinement!" Then, a stream of sliver of air rushed towards the century-old yin fog and was entangled with it. The century-old yin fog that was originally moving forward seemed to be wrapped in something, and the cold air that overflowed around was obviously weak. The most important thing is that the speed of the century-old yin fog was suddenly moved and had been tied to the secret art of confinement.

However, Chen Feng could also see that it was difficult for this Trial Elder to maintain this secret technique. After all, for a more advanced secret technique like the imprisonment secret technique, all the secret masters could master was just a little bit of fur.

Sure enough, compared with the two Trial Elders who could move freely after performing the Fire Snake Secret Surgery, after performing the Secret Surgery, the Trial Elder still maintained the state of being in place, carefully controlling the Secret Surgery to imprison the Centenary Misty with secret power. However, he was only able to tie the Centenary Misty and still could not curb the momentum of the Centenary Misty. And undoubtedly, the secret power consumed by this Secret Surgery was huge. In a short while, the Trial Elder's face turned pale and his face became more and more serious.

The other two trial elders would not miss this good opportunity. They released two fire snakes again, and then fireballs as big as fists were fired one after another. According to the strength of the two trial elders' secret masters, it is completely possible to shoot a larger fireball. However, in that case, the process of casting will be much slower, and it is better to use the tricks so easily and frequently to hit the hundred-year yin fog.

The roar of flames mixed with the surging of water vapor throughout the secret passage made the airflow of the entire secret passage extremely unstable, and new soil kept falling from the cave wall. Several timid secret masters were already trembling with fear. The trial had just begun, or it had not yet begun, and some people had already thought of retreating.

Finally, with the three trial elders shouting: "Explode!", the secret technique of imprisonment, the fire snake and the hundred-year-old fog burst out!

However, the threat of the century-old fog did not disappear with this explosion, but instead exploded at once. After all, it was like water pouring into hot oil, and the century-old fog immediately spread the secret passage as it exploded. The speed was so fast that it was even better than before!

"Everyone squats on the ground and resists the fog! Just wait until it disappears!" said the three trial elders, and retreated, not daring to bear the brunt.

As soon as Chen Feng and Haoxue saw the situation ahead, they knew that the situation was not good. They had already lie on the ground without waiting for the orders of the three Trial Elders.

A hundred years of fog is coming!
Chapter completed!