Ding Chizan and De Chizan looked at each other and saw a hint of ferocity in each other's eyes.

Because they knew that if they went further, they would reach a mountainous area that stretched out endlessly.

As long as they entered the mountains, neither the Tibetan soldiers nor the Tang soldiers could increase their marching speed.

The Tibetan soldiers, who have always been good at fighting in mountains and hills, will slowly catch up with the Tang cavalry because of their advantage in speed.

The 20,000 troops were like magnified ants, crawling laboriously on the rugged and winding path.

The pathless road with rugged rocks and bumps appears flat from a distance, as if nature has covered this mountain range with a thick green velvet carpet.

But when you actually walk in, you will find out how uneven the extremely primitive "green velvet carpet" is with its bumps and potholes.

The road is full of hidden pits and strange rocks. Even the edges of the rocks are as sharp as blades. If you are not careful, you may scratch the horse's legs and make it lose its mobility.

Dozens of war horses have broken their legs because of the uneven potholes and the hidden caves covered by strange rocks. Many soldiers have also sprained their feet because of the extremely difficult mountain road, and now they are limping forward with difficulty.

...

...

Under the rolling mountains, the Tubo soldiers also moved slowly, and their tall and good horses would also sprain their ankles on the mountain roads or fall on the sharp rocks.

Li Hong had already fallen off the horse and refused Banmei and Xunlan's help in holding the horse. He led the horse himself, moving forward slowly with one foot deep and one foot shallow.

Under such terrain conditions, only Hua Meng, Mangzhong, Liebao, Banmeixunlan and Wufawutian were the most relaxed.

Their own martial arts skills are already very high, and combined with their light-body skills, even if they are leading a horse, they are much faster than ordinary people.

Hua Meng's figure was on the halfway point of the mountain, like a jumping rabbit, flying high and low over the rocks and bushes, and soon he ran to Li Hong.

Li Hong then handed the reins in his hand to Hua Meng, walked forward leisurely, and listened to Hua Meng's report.

"Master, we're almost there. As long as we can climb over this mountain before dark, we'll be safe." Hua Meng was running breathlessly in the face of the harsh conditions of nature.

"Is Heichi Changzhi at the cliff ahead?" Li Hong looked into the distance for a long time, but he still couldn't find where Heichi Changzhi was ambushing.

"Yes, sir. As long as we slow down and suppress the speed of the Tibetan soldiers, they can ensure that they are completely hidden." Hua Meng glanced behind him and saw the Tibetan soldiers who were slowly coming down from another mountain range and were preparing to head to this mountain range.

The most insurmountable thing when fighting on the plateau is the thin air. Li Hong tried hard to even out his breathing. The altitude sickness made his eardrums feel a little uncomfortable.

"Send a few people to roll rocks from high places to delay them. The troops must rush over. Otherwise, by the time we get there, they will probably fall into the ambush circle. If we get hurt by then, it will not be worth it." Li Hong looked a little worried.

The Tibetan soldiers' speed of marching on the plateau was beyond his imagination. In half a day, they actually shortened the distance a lot.

Through the telescope, Li Hong could vaguely see several nimble Tang soldiers on the opposite cliff, with branches sticking out of their bodies, burying explosives under a huge rock.

That night, Li Hong led 20,000 cavalrymen and broke through Heichi Changzhi's ambush.

When he passed by, Jingzhe followed closely beside Heichi Changzhi, not leaving his side for a step.

Jingzhe always held the sword in his right hand. As long as Heichi Changzhi showed the slightest abnormality, Jingzhe would raise his sword and kill Heichi Changzhi first.

The idea that those who are not of my race must have different hearts seemed to be planted in Jingzhe's head. He was deeply afraid that when His Royal Highness the Crown Prince passed by, Heichi Changzhi would have rebellious thoughts.

Fortunately, everything went as Li Hong expected. When Li Hong passed by, Heichi Changzhi was even more nervous than Hua Meng, and ordered no one in the army to make any unusual movements.

Li Hong did not stop and continued to cross mountains and ridges overnight, because only in this way could he reach the end of the endless mountains before dawn, and only there could he let his troops rest.

Next is a smooth road, starting from Dangxiang and heading straight for Fuxi City.

He expected that on the way to Fuqi City, there would be Tibetan soldiers to intercept him.

After a night of traveling, the 20,000 troops were exhausted. No matter how skilled Banmei and Xunlan were in martial arts, they were women after all, and their altitude sickness became more and more serious.

Li Hong looked at the sky gradually getting brighter, but he naturally felt pity for Banmei and Xunlan, who were obviously unable to hold on any longer.

So he ordered the two women to mount the horses immediately, with Hua Meng and Liebao holding the reins.

But the two women refused to obey. Their pale cheeks, chapped lips and tired eyes were all filled with determination, as if they would not mount the horse unless His Royal Highness the Crown Prince did.

Li Hong looked at the two stubborn women speechlessly, then looked at the way down the mountain, and had to order the troops to rest here and continue their journey after an hour.

As soon as he finished speaking, Banmei and Xunlan knelt on the ground and apologized to Li Hong without caring how sharp the rocks under their feet were, believing that it was their fault that the march was delayed.

Li Hong stroked Banmei's fair cheek and said calmly, "You are not worthy of me stopping the entire army because of you. I am just sympathizing with the altitude sickness of other soldiers."

The sky gradually turned pale, the dew from the previous night soaked the armor on his body, and the morning breeze blew past, making him shiver involuntarily.

Li Hong wrapped the two women together in thick cloaks, fearing that if they rested for an hour, they would be blown by the mountain wind and catch a cold.

Just as they were getting ready to go, earth-shaking explosions suddenly sounded on the opposite mountains. One explosion after another rang out in the endless mountains.

It was like the thunder in a night of heavy rain, coming from the opposite mountains with flames, and the despairing explosion made Li Hong feel as if the mountains under his feet were shaking.

The rumbling sound of the explosion was even more terrifying in the valley. The roar like thunder drowned out the screams of the Tubo soldiers. The entire mountain range seemed to have offended a mountain god, making the entire mountain range become creepy because of the screams.

Bai Qi, who had long been accustomed to the sound of explosions, suddenly stood on a rock with his front legs as soon as the explosion ended, and then began to howl like a wolf.

After the explosion subsided, the long howling of wolves sounded like a stream of clear spring nourishing the other animals in the mountains. After a short while, the cries of other animals could be heard among the mountains.

"Is this Bai Qi asking other animals what's going on?" Li Hong took the telescope handed over by Hua Meng, looked quietly at the ambush area of ​​Heichi Changzhi, and said with a relaxed mood.

"We're fine, we're all fine." Li Hong rubbed Bai Qi's huge head and began to walk down the mountain.

As for Ding Chizan and De Chizan behind him, whether they could escape from Heichi Changzhi's ambush safely was no longer his concern.

"What on earth is that sound?" Ding Chizan's eyes were red!

He deliberately chose not to cross the mountain last night in order to continue to paralyze the enemy, and then take advantage of the Tibetan soldiers' advantage in mountain warfare and plan to launch a surprise attack on the Tang soldiers early this morning.

But he didn't expect that someone had already set up an ambush here, waiting for him to rush in.

This sound, like the thunder of a mountain god's roar, was so familiar to him.

His cities, including Dechizan's city, were destroyed by such thunders.

Now, the sound of thunder rang out again! Huge rocks and dust rushed towards them from above with a crashing sound.

However, on the mountain road, his troops had no way to disperse because of the climbing, and in a short while, the rolling stones had already rushed to them.

The huge impact force did not allow him to order the troops behind him to disperse, as he himself was the first to be submerged by the rolling stream of boulders.

Screams and cries for help were intertwined with each other. The Tibetan soldiers wanted to disperse and escape, but their speed was no match for the speed of the rocks rolling down due to the explosion.

After a while, when the first batch of stones rolled down to the foot of the mountain, the 50,000-strong Tibetan army had completely lost its combat effectiveness.

Dechizan was also covered in scars, looking at the huge rocks in horror. He didn't want to believe that this was a trick of the Tang soldiers. He would rather believe that he was defeated by the thunder that pierced his eardrums rather than by the Tang soldiers.

"This is not something Tang Bing can control. This is a punishment from Heaven. God is punishing us. God is on the side of Tang Bing." Dechi Zan lay there groaning, one of his legs pinned down by a huge rock.

But because the second wave of rolling stones rushed down rapidly, it was like the water level of the Guqu River suddenly rose a lot during the rainy season, and the waves carried pure water and flooded over.

Dechizan closed his eyes in pain. At the moment when the huge rock buried him, he didn’t understand what the explosion was.

Why was there such a huge explosion in Tang Bing's hands? What on earth could bring such a powerful force that could pierce people's eardrums and shake the earth?

The boulders fell slowly and scatteredly, no longer as fierce and violent as at the beginning. The stones rolled weakly in twos and threes.

The Tang cavalry behind him, holding bows and crossbows, began to clean up the corpses on the halfway point of the mountain that had not yet been buried by the falling rocks.

As long as they saw the shadow of a Tibetan soldier, they would first give him a stab or shoot him with an arrow, regardless of whether he was dead or alive.

The heads of Dechizan and Dingchizan were completely disfigured. If it weren't for the tokens embroidered on their arms to prove their identities, Heichi Changzhi would not have dared to be sure that the two round, bloody and fleshy things in front of him, with no way to tell the back and front of the face, were actually the two men's heads.