It took only two minutes for a horse to ride on a 20-mile road, but because the road was deserted for a long time, it was blocked by thorns and weeds. It took half an hour to slowly open the road. When Chen Xu took the water gently and a group of people to the front of a canyon where the terrain looked ferocious and dangerous, the sun had completely set and the surroundings were in a dim and dark twilight.

The Fen River is not very water in winter, but the river channel here is narrow, and the steep cliffs on both sides rise up, and finally slowly close above the head, forming a dark and dark cave.

The mountains around were covered with dark and quiet, with yellow and emerald green intertwined. The slightly cold evening breeze swept across the canyon, making the sound of the ghost valley wolf howling, as if there was a demon dragon lying and whimpering.

In addition, there was silence around, not only was there no roar of wild beasts that were rising and falling in the wilderness on weekdays, but even a bird could not be seen.

Standing in front of the dark and gloomy canyon, a group of guards felt a little sweat standing up. Coupled with the cold air of the water and the howling of the evening wind, the horses under their crotch were restless and stomping their feet and retreating, as if there were wild beasts hidden in the cave that scared them.

"Marty, this should be the mouth of the Black Dragon. It's too late today and the situation inside is unpredictable. Let's go back to Langmeng County for a night to rest and come again tomorrow..." a well-mannered guard reminded.

"No, I've been busy. When the attack on Tongwu Hou was here, I have already investigated in detail and checked the armor of the injured imperial guards. Those traces that seemed to be scratched by sharp claws have also carefully examined and asked the teachers and students of the Agricultural College. Based on the information I learned, there may be a kind of group creature hidden in this cave that I had never seen before. It may really swallow flesh and blood, but it is not the so-called demon dragon. Since we are here today, we must first find out that the musket team's rifles and pistols are loaded, and the grenades are ready!" Chen Xu turned over and dismounted as he spoke.

"Husband, let me go in and investigate first!" Shui Qingrou jumped off the horse nervously and grabbed Chen Xu's arm tightly.

"Don't worry, the situation inside is unclear at the moment, you don't need to go in, use Taiyi Divine Thunder to test it out and you will know the result!"

Shui Qingrou and the group of guards all breathed a sigh of relief, each holding their weapons tightly to surround Chen Xu, while the accompanying musket team filled the pistol and rifles under Chen Yong's arrangement, and someone even took out grenades to check.

"Remember, don't panic no matter what you see later. There are huge rocks and thorns near the entrance of the cave that can be hidden. If there is danger, you can attack at will. But remember not to make a fuss around. If you lose your face, go back to become a manure remover!" Chen Xu looked up and reminded him when he took out his pistol to fill the bullets.

"Yes, yes, don't worry, if you have marquis here, how could I be afraid!" A group of guards and musket team members all pointed their heads like chickens pecking at rice.

The manure removal worker was the work of the cheapest slaves in the mansion. They were dirty and smelly every day. And their personal bodyguards were definitely the most noble servants in the Taishi Mansion. They had the best food and clothing, the highest salary, and most of them even married the maids in the mansion. Now that they were well-off and had a family, their identities were no longer as simple as servants, but a kind of retainer who was prosperous and both rich and damaged. If the emperor killed the entire family of the Taishi Mansion, none of them could escape and all of them would be lost.

No one can stand the gap in identity from the position of a senior retainer to the lowest-ranking man.

What's more, the king is worried about his ministers' death. At this time, no one has any other choice except trying hard to protect the Marquis and the Marquis' Concubine. Once something happened to Chen Xu, they would all be cut into pieces by the First Emperor.

The preparations were completed soon, and a group of people came to the entrance of the valley and hid behind several huge rocks.

The dark cave in front of me looked like a hideous and terrifying mouth, which seemed to swallow the dark world in one bite. The howling cold wind blew out of the cave, and everyone couldn't help but slamming a few strokes, feeling a little cold all over.

"Get two grenades in!" Chen Xu turned his head and ordered, and Chen Yong commanded the two most burly musket players to stand up, each taking out the grenades, skillfully pulling out the cord and exposing the rope.

"Puff~"

As two sparks lit up in the dark twilight, a familiar breath of fireworks began to drift in the evening breeze, and two grenades with faint blue smoke were thrown far into the dark cave.

With two inaudible sounds coming, the grenade seemed to fall into the river. The group of people held their breath and stared at the cave, and their hands holding their weapons began to tremble slightly.

Five…Four…Three…Two…One…One…

As time ended with Chen Yong's countdown, after a slight stay, two bright flames suddenly exploded in the dark cave. With the huge sound, as the ground trembled slightly, shrapnel sand and gravel river smoke rolled out from the cave. In the violent explosion, there was a suffocating scream mixed with.

This sound seems to penetrate the eardrum and reach the soul, which sounds like a dizzy feeling.

"Look, something is coming out~"

Amid the trembling screams of a guard, a black thing roared out of the black cave. A sharp and harsh scream rushed out of the cave entrance and hovered in the extremely dark canyon, like a black demon dragon rushing towards the river.

“南~~”

Thirty feet away from the entrance of the cave, more than twenty war horses gathered together were frightened and fled in neighing.

However, the black thing that rushed out of the cave suddenly dissipated like smoke, turning into countless tentacle-like long beards hovering and swaying on all sides, instantly wrapped a few slow-running horses in the middle. With the terrifying neighing of horses and crackling sounds, countless things began to hit the horses and the cliffs on both sides, and the air instantly filled with the smell of dust and blood.

"Grenade attack!"

Chen Xu roared, and raised his hand and threw a grenade that pulled the lead into the densest area in the black. The musket team members who received Chen Xu's order also took action. In an instant, more than ten grenades were thrown into the narrow valley. With a few splashes of pistols, the explosions quickly exploded in the black smoke.

A violent roar, bright fire, smoke rising from the sky, shrapnel and gravel splashing on all sides, stirring mist and cold wind mixed together. In the crackling sound, the breath of gunpowder was filled with blood mist like rain rolling around.

In this violent explosion, the tumbling black mist began to shatter. In the harsh roar, a bunch of black gathered together to rush into the canyon dozens of feet high. More of them were torn and rolled out in pieces under the impact of the explosion air waves, and hitting the rock walls on both sides.

"Mr. Marquis, what the hell is this?"

Several furry things fell behind the huge rocks where a group of people were hiding, and several guards retreated in horror and twisted expressions.

At this time, the valley was already very dark, with a distance of only more than meter, and the distance was hazy. Only a meter wide above the canyon, a sky looked bright.

"Husband, this seems like an uncommon bat!"

The bold and careful water gently picked up a ball of furry things and looked at it in surprise.

Chen Xu also lifted it up with his hand and looked carefully. It was as furry as a mouse, but it had two sharp fangs, no tail but drooping pair of broken membrane wings, and there were several barb-like claws on it. He was indeed a bat, but his body was much larger than an ordinary bat. His wings were all extended at least one foot long.

"Marty, this is indeed a bat, but my subordinates have never seen such a big bat!" The guard leader stood up with relief.

At this time, the canyon had quieted down, and the black fog that rushed out of the cave had almost disappeared. Although the horses were flushed in panic, they did not run far away, and the explosion of the grenade did not frighten them, because the horses had all plugged their ears with cloth strips on the way to come. At this time, the sky was dark and invisible, and they slowly calmed down after some random collisions.

"Haha, it seems that I am not wrong!"

Chen Xu smiled and threw the bat in his hand, and ordered the guards to light the torches to search around. Sure enough, he quickly found hundreds of dead bats. Among the grass thorns and rivers, countless undead bats were still screaming and struggling, but they were all ruthlessly trampled to death by a group of guards.

"Since you have figured out the truth of the demon dragon, let's go back today. When you turn around for a few days, you will try to catch all these bats that like to suck human, animal, wild beasts and flesh!"

Soon, a guard went to find the horses that were scattered. Several of them were covered with crisscrossing scars, and they looked extremely terrifying. Fortunately, they were all skin trauma, so they only needed to use the hemostatic powder they carried with them to stop the bleeding.

"Hurry, I just heard the sound of Taiyi Divine Thunder. It must be that the Marquis is subduing the demon dragon!"

On the desolate path, under the dim twilight, there were a group of people riding horses coming in a constant stream. When they felt the mouth of the black dragon, Chen Xu and others had already packed up and started walking back. Several of the guards also strung dozens of bats with vines hanging on the horse's butts, preparing to take them back to study.

When Chen Xu returned to Heihu Pass again, countless torches came in the southeast. Soon, he saw several officials from Langmeng County wearing official uniforms and riding horses. Not only were there more than a hundred soldiers, but also thousands of people.

When they saw Chen Xu, the officials in Langmeng County were naturally frightened and excited. After learning that the so-called demon dragon in the Heilongkou mouth was just a group of bats that like to eat the blood of humans, animals and wild animals, everyone seemed to be in a dream and couldn't believe it.

In order to completely eliminate the group of bats entrenched in the Black Dragon's mouth, Chen Xu also temporarily followed the Langmeng County Magistrate to rest in the county and made some arrangements at the same time.
Chapter completed!