As July approached, the sky was as hot as two suns, and the hot and dry air was unusually restless. At this time of year, the world's major rivers should be the time when the water level rises at its highest, but this year is unusual, and God has not had a drop of rain for more than two months. The Huaicai River and wild goose water in the north can barely support the living life of the Kia Lan people and some crop irrigation, while the severe drought in the south is getting closer and closer to the point of no return. The condition of the fish river on the east side of the river valley plain is quite good, but the water level of the Shengya River on the west side is constantly falling, once the Shengya River dries up, nearly 100,000 people in the north and south who rely on it to survive will have nowhere to escape, people have no way to deal with such natural disasters, they can only pray for the gods to pray for the arrival of nectar day and night.

Many diseases caused by mosquitoes began to rampant in this hot weather, and more and more people in the Damon people developed headaches, nausea and then blue, quadriplegia and finally complete numbness, and the lack of water made the medicine scarce, and the entire Damon tribe was cast a thick shadow over death.

Ao Han encountered such a difficult challenge when he first took office, and he was full of confidence in fighting against foreign invasions, but against such natural and man-made disasters that had not been encountered for hundreds of years, it was difficult for Ao Han to come up with a solution even if he scratched his head every day and night, and another thing that made Ao Han even more sorrowful made Ao Han even grow gray hair. After the drought began, Qiu Li, who had always been lively and active, suddenly fell ill, her illness was different from the stubborn disease that was prevalent in the Damon tribe, such as heat stroke and not, this strange disease increased with time, Qiu Li had no other symptoms except for his body becoming weaker and weaker, Ao Han tried his best to let Qiu Li recover a little.

Not only in the valley plains of the Daimon, but people all over the world are trying to fight drought and disease, but an even greater disaster is happening at this time that everyone has not expected.

Late one night in July, the sky was pitch black without a trace of light, the sky above the Tianmang Mountain in the north was covered with dark clouds, the black clouds were flowing rapidly in a whirlpool, several lightning bolts shot from the dark clouds to the inside of the Tianmang Mountain, and dozens of black gases instantly emerged from the Tianmang Mountain. Tianmang Mountain is an evil mountain divided into two in the north and south, the ravines and ravines are full of sharp sharp stones, many scattered corpses and bones are spread between the mountains and rocks, the northwest and northwest sides of Tianmang Mountain are cut off by large cliffs on three sides, the south is a pitch-black dense forest, and there are many astonishing large beasts growing in the dense forest. For a long time, no one dared to set foot in this dense forest, let alone set foot in the Heavenly Mountain, which the Alans called "the gate to hell", and no one knew what was inside.

And the horror that exists in the vast mountains is actually a group of dark horse cavalry comparable to the devil. A hundred years ago, there was a hunting people near the Beining Sea in the Arctic, led by three powerful leaders, who rode rare black horses to kill the fauna of the southern shore of the Beining Sea and the southern end of the grassland, and their slaughter caused the grassland ecology to be destroyed, large areas of grassland turned into wasteland, and many people lost their food sources and died in yellow sand. This exterminating slaughter angered the other nomads, who banded together to force them out of the grasslands on the southern shore of the Beining Sea, and the despondent slaughterers disappeared forever as they descended north across the abyss to the Tianwan Mountains. However, the truth is that they are not dead, Tianmu Mountain is an evil mountain, and there is a circular fire pool at the bottom of Tianmao Mountain, similar to the furnace that burns the souls of the dead in the hell depicted in the history books. This kind of flame seedlings purple fire gushes out from the ground and never goes out, it does not belong to the underground 10,000-year-old magma, although it is a flame but there is no burning heat, the black horse cavalry absorbs the energy of ordinary people from the fire pool, the evil fire can be fused with the blood through the skin and then make the blood poisoned and blackened, there are many flame seedlings like brilliant flame flowers growing in the pool, that is the illusion poison that the cavalry of Tianmu Mountain uses to weather, dry and cracked the body and live forever and completely lose themselves, the white flowers are unique in the flames. They continued to cultivate in the dark cave, the flesh on their faces collapsed into the black and yellow face bones, their bodies had turned into dried corpses but they were as hard as stones, and the weapons they used, spears and knives, were forged from mountain stones in the flames, and they were extremely sharp. And the tens of thousands of black war horses under their seats have long since turned into mechanical beasts, the eyes of the black horses have become pure black, and their limbs are as stiff as iron and stone. The downcast have surrendered their souls to death, and they no longer care about their own life and death, and the external factors of cold, heat, hunger, and disease can no longer affect these living dead who have eaten stones for hundreds of years, and all they do is to return to the earth to avenge those who have brought them to shame.

There were more than 12,000 cavalry in Tianmu Mountain, and the immortal dark evolution caused their actual combat strength to triple or even more. Their leaders are still the same three people who led them in the first place, and they have proclaimed themselves the Demon Emperor, the Evil Flame Emperor, and the Evil Spirit Emperor. The Demon Emperor is the head of all hosts, the only one who dares to jump into the pool of fire and go deep into the bottom, and the poison from the bottom of the Flame Flower has infected all the cells from his outer skin to his inner blood more severely than the others, and he has become a veritable devil.

In the midst of a great drought, the Demon Emperor thinks the time has come to fight back against his former oppressors. On this night, the Demon Emperor summoned all the cavalry in the Tianmu Mountain to come out of the darkness and gather around the fire pool, the Demon Emperor stood on the edge of the fire pool and held a long sword that was still burning and announced to all the black horse cavalry: "It is now in the season of the world's great drought, this is the best opportunity for God to give us to counterattack those shameless people and unify this chaotic world, we have been waiting for this day for the opportunity to take revenge for too long, the cavalry of Tianmu Mountain take up your weapons and go out to kill as much as you like!" After the Demon Emperor finished speaking, he raised the silver-cyan flame sword in his hand, and all the cavalry also raised their weapons at the same time, and the terrifying cry activated the thunderbolt and thunder, scaring off the beasts in the dense forest to the south. After the shout, the Demon Emperor began to give the battle order, and he said in a unique magnetic voice: "The Arlan people in the east and north of the Vast Mountains are the descendants of the shameless people who drove us in the first place, we don't need to go out to deal with them, the Spirit Emperor, you bring 4,000 cavalry is enough to wipe out all the Arlan people in the north." The ethnic group led by the Damon clan in the south and the Montenegrin wizard at the southern end are more difficult to deal with, I and the remaining 8,000 people with Yan Huang will go south, and then I will lead 5,000 cavalry to deal with the wild people of the Montenegrin wizard, Yan Huang, you will take the rest of the people across the fish river to attack the Damon tribe, and then I will kill the Montenegrin wizard and turn back to the northwest to help you. Warriors, let them taste hell too. After saying that, the Evil Demon Emperor's mouth flowed out of greedy and disgusting black juice, and the Evil Flame Emperor and the Evil Spirit Emperor obeyed the order and began to arrange their own expeditionary army, and a seemingly hasty but long-planned disaster was about to be staged.

Three days later, at dawn, as soon as the sky was faintly bright, the horn sounded from the mouth of the cave in the vast mountain, and an army of 12,000 people rode into the southern jungle on black horses, and the beasts that had always been kings in the dense forest were now hiding far away in the black hole and the grass and did not dare to show their faces. The black horse cavalrymen were dressed in black armor, and the iron helmets wrapped around the terrible heads, leaving only two yellowed eyes exposed. After leaving the dense forest, the Evil Spirit Emperor led four thousand black horse cavalry to attack in the northeast direction across the mountains and mountains according to the order, while the Evil Demon Emperor and the Evil Flame Emperor went all the way to the south, and the death line began to rise, and the blood flowed like a river where the cavalry of Tianmu Mountain passed, and one by one the tribes were about to begin to encounter the disaster of extermination under the iron hooves of the black horses.

The Western Yalan tribe couldn't resist the attack of the Evil Spirit Emperor at all, and everyone was defeated and retreated in the direction of Xie Ning Mountain. After Yeats received the news of the attack of the black horse cavalry of Tianmu Mountain, he quickly sent people to gather the leaders of the Yalan tribe in all the mountain ranges to discuss countermeasures, but the speed of the attack of the Evil Spirit Emperor was much beyond his expectations, in less than ten days, the two mountains near the Tianmu Mountain, including the second largest Xialing of the Yalan tribe, have all become the ghosts of the evil spirit emperor's sword, and the two Yalan armies have basically no ability to resist against this group of cavalry, and this sudden attack quickly washed the mountain. The Evil Spirit Emperor did not directly go east to Xie Ning Mountain, but went north to attack the steppe nomads there, after all, all the sources of hatred took place on the grassland. A week later, Yeats gathered the chiefs at Mount Cunning to plan the battle, and many people expressed fear at this lightning-fast march, Yeats understood that this group of demons was coming for their heads, and it would be difficult to defeat them if they fought hard, and it was useless to surrender, and the Arlan people could not surrender.

Everyone seemed at a loss, and the first day of the chieftain's meeting ended in a state of panic. Yeats didn't dare to delay, because this rapid march was too fast, and he didn't know how quickly the Evil Spirit Emperor could kill the grassland and reach Xie Ning Mountain.

Two days later, outside the council camp, a strong wind suddenly blew in the hot sky, which was a cold wind blowing from the north, but it had already turned into a hot wind by the time it reached Ningshan. The wind blew the curtain with dust, and while Yeats, his military advisors, and the tribal leaders were at a loss as they looked at the map that had been on the table for nearly three days, Yeats suddenly looked at the position of the grassland and became nervous. He began to use his hand to map the route of the march, muttering something to himself. After Yeats finished the comparison, he pointed to the map with a serious expression and said to everyone: "You see, these dead bodies went to the north from the Xialing Mountains, and after bypassing the Northern Cold Mountains, there is a large area of Baylor grassland, and to the north of the grassland is wasteland, swamp and ice, and the steppe people live in this location", Yeats pointed to the center and right of the Baylor grassland," We can send a group of men and horses from the west through the shortcut path in the mountains, and attack them from behind when they reach this position, and I will lead most of my troops and horses from the Xie Ning Mountain to the north to the Wushan Mountains, and the steppe people will definitely flee to our side in the south, and the hidden whereabouts of the attack from behind must not be detected by them. When they go south, they set fires, and now is the time when the north wind rises in the steppes, and after the fires are set you will go to the mountains of Oshan from the west to meet us. The Osan Mountains are the battle fortress of our Alams, and they will not be able to kill us with their iron arms, and when we attack on both sides, and there is a fire blockade in the north, they will definitely flee to the northeast. Then we went north along the steppe border until we drove them to this place. Yeats pointed to the northeastern part of the map, an uninhabited land that had not lived for centuries.

The military advisor on the side reminded him worriedly: "Attacking the grassland with fire is a last resort, if there is any mistake, we will become sinners for the ages." Yeats raised his head and looked around at the people around him and said, "This time the wins and losses are all in betting, but the form is imminent, we have no way, the enemy can swallow our two armies in a few days, it is not idle." But for the sake of our survival and that of future generations, we must defeat them with all our lives. Ye Ling, Ye Feng, An Miao, Mo Fei, you take 4,000 people from the west to copy, we will arrive at Wushan in five days, the enemy has been out for nearly four days, according to their speed should be two to three days to reach the grassland people's residential area, you must set fire to them on time when they go south and then meet us, if any of them make a mistake in time, then we will be in vain, and then the entire northern world, including the grassland, will fall. But I believe that since our ancestors have defeated them, we will win this war. After Yeats finished speaking, he looked at the sky outside and said hesitantly: "I hope that the steppe people in a hundred years will not blame me for what I have done." ”

After receiving the order, the major leaders immediately rushed to their own territory to prepare for battle, and the military advisor said to Yeats after the others left the camp: "Patriarch, according to the news of the southern tribes, only one-third of the cavalry killed in the Tianmu Mountain have reached the Baylor grassland, and most of the black horse cavalry has gone south to attack the race by the Shengya River. What I fear is that even if we win the cavalry of the steppe by then, if the Daimon in the south loses, the black horse cavalry that has turned back may also perish us. Yeats looked at the crumpled map on the parchment and sighed and said, "I hope the Damon can withstand the pressure, this is really a natural and man-made disaster!"