Ai Dao asked someone to inform the five great chiefs that the stone cave was about to be opened.

Looking at the jade bottle in his hand, Aidao was quite painful, sealed it and opened it, and then threw it into the wooden barrel filled with water, and then took out another bottle and poured a liquid with a somewhat fishy smell into the wooden barrel.

This was the last bottle of potion, and it was those jade bottles that hurt his heart.

'Fish gall powder' is the kind of agent that corrodes any object, so how to store this agent is a problem, the Japanese pharmacist experimented many times, and finally came up with a way, that is, not to add the last additive of this agent, and then add it when it is used, stir evenly, and quickly pour the medicine into the place where it needs to be corroded.

After the potions were mixed and dissolved a little bit of time, the other Japanese quickly took out the straws, extracted the potion, and injected it into the stone crevice.

This action should be fast, thinking that these widows are very skilled in cooperating, the potion will be drained in the blink of an eye, and when it is finished, take off the deerskin gloves, throw away the straw, and quickly retreat.

Then everything that has come into contact with the liquid potion of the over-the-counter 'fish bile powder' turns to ash in the blink of an eye.

And that gravel still needs time to decay.

Then there was a long wait, the Japanese could not be withdrawn, he had to wait for the results, and then he had to sprinkle another potion so that the corroded stones could be turned into stone dust.

In an hour or so, the last section of the stone cave was clogged into stone powder, and the dust raised by the rumbling sound of falling stones was carried out of the cave to the north by the wind.

Lan Fang is very lucky, although there is not much wind today, but after the cave is cleared, there will definitely be a passing wind, and today it happens to be very difficult to see the southeast wind, so the people on their side are not covered by stone powder.

Aijima went to the wrong side, and it was bad luck.

Aidao understood everything, but he didn't calculate what the wind direction was today, and he was covered in stone dust and squinted.

"Launch!"

Lankay ordered to wait for the twenty repeaters to fire.

Pity these widows and those barbarian war slaves and the women who wait for Aidao and so on, and they become arrows in the blink of an eye.

They didn't understand what was going on until they died, and no one would have expected that there was an ambush on the other side.

It went well, very well!

The repeater fired all the arrows and quickly flashed to the sides, and the lanceman rushed forward.

"Jiao Zhong, go and report to the general and ask for support. ”

Lan Kai turned back to Lan Fang's guard leader and gave an order, and immediately led twenty spearmen to rush to the north of the cave.

The efficiency of the barbarians really disagreed, the news had been spread from Aidao for more than an hour, and when they arrived at Aidao and waited for them to be killed, Lan Kai rushed to the outside of the cave entrance, stunned and did not see the shadow of the barbarians.

A hard-fought fight was expected, but it didn't happen, and Lan Kai punched him in the air.

Come to the north of the entrance of the cave, there is a platform more than three feet wide and more than three zhang long at the entrance of the cave, looking down, it is a slope with a very large slope, and the bottom of the valley has to be more than ten zhang high.

If you look up, you will see a cliff with a steep slope and a lot of rocks.

Looking at the opposite side, there are some cliffs that are difficult to see.

This is the Valley of Rocks.

Lan Kai heard that the Rocky Valley was originally a canyon more than ten zhang wide, with steep cliffs on both sides, and rubble often rolled down.

In the last war, the great monks collapsed the cliffs on both sides and filled in the rocky valley, so the rocky valley that has been cleared out now is like a big trough, wide at the top and narrow at the bottom, and the steep cliffs have a slope.

"What's the situation?"

Lan Fang hurried over.

"General, look below. ”

Lan Fang looked down, and below was a dense crowd of tents, in which barbarians were shuttling around.

"More than a dozen soft ladders, pull them up first. ”

The small platform is inlaid with a dozen iron pegs and hung with soft ladders.

After Lan Fang asked people to drag the soft ladder up, he finally found that something was wrong below.

The hole is wide and should have been deliberately enlarged.

Lan Fang asked people to push the car crossbow and the god-killing crossbow over, although it was spacious, it couldn't hold four large car crossbows, so only a car crossbow and a god-killing crossbow were arranged on both sides.

"Lan Kai, leave you a thousand men to guard here, and I'll report to the Grand Governor. ”

There are too many people here, and it can't be used.

"There are also three barrels of fire oil, which can be used at critical moments. ”

Leaving Lan Kai and a thousand elites, Lan Fang returned to the barracks and ordered the camp to be pulled out and set up to go to the stone pass.

"Liang Mao, you take the first step and report the situation here to the Grand Governor, and I will arrive later. ”

Liang Mao left first with the guards.

Later, Lan Fang and Han Yu, under the guidance of Miao Kui and his wife, led the army to the Ranshi Pass.

Standing on a high place, I saw that the Ranshi Pass was not far away, but it took three hours to walk up to the Ranshi Pass.

By this time it was already dark.

Seeing that it was the banner of Xia Guohu's mighty army, Xiguan City Gate hurriedly reported, and after a while, Liu Guozhong personally brought people out to greet him.

"Has the Metropolitan Governor ever seen General Liang?"

Because he didn't see Liang Mao, Lan Fang became worried.

"General Liang didn't know the path and fell and was injured, he is being treated in the house, it's no big deal, General Lan don't worry, General Liang reported the incident to me, and has made arrangements, first arrange the accommodation of the army, and then talk about it in detail later. ”

The arrival of the Huwei Army, Liu Guozhong was still very face-saving, and personally greeted and arranged the camp tent, during this period, Han Yu did not show up, after all, he was the acting leader of the Black Lotus Holy Sect, Liu Guozhong and many people knew him, before he explained it clearly, he was afraid of misunderstanding, so it was better to dodge.

After arranging the army, it was already the time to hold the lamp, because the barbarians pressed the border, so the reception banquet was canceled, but Liu Guozhong still stayed in Lan Fang for a light meal.

During this period, Lan Fang saw Liang Mao, it turned out that Liang Mao was in a hurry, and as a result, he took the horse and fell into a waterhole covered by the wind and snow, fortunately, his guards were very dedicated, and quickly threw the rope for Liang Mao to catch, and pulled him up with all his might, but Liang Mao's horse was wasted.

Liang Mao broke his left leg.

He brought a military doctor, and Lan Fang sent someone to send Liang Mao back to the military camp for treatment.

"It's another trick of the Japanese people, fortunately it was discovered by General Lan, otherwise the consequences would be serious. ”

After receiving Liang Mao's report, Liu Guozhong broke out in a cold sweat and hurriedly invited Qin Kang, Li Lao and others, and then Li Lao went to the cave to assist Lan Kai in garrisoning.

At this time, in fact, Lan Fang and Liu Guozhong didn't know that there were Central Plains people helping the barbarians.

In the middle of the Troubled Stone Valley, there were several large tents, and in one of the large tents, the five great chiefs looked depressed and relatively speechless.

Luoshan Liu Ga'er was also here, and they also remained silent.

Outside the tent lay the corpse of a detached barbarian.

The deceased was sent by Aijima to deliver the letter.

But he didn't know what was going on, and by the time he delivered the letter, Lan Kai had already killed Ai Dao and others and occupied the entrance to the cave.

This letter came quickly, and the red-haired old ghost blew up when he heard it, and after spending so much work, he finally found a way, but because he got the letter late, he lost it、、、