The huge black stone castle looks like a fierce beast ready to devour living beings at any time in the night, and it looks extremely terrifying.

Ice Heart and his team stood in the middle of the canyon bend, looking into the air worriedly

Even Xiaobai stopped barking, poked his head out in surprise, and a pair of dark eyes stared at the sky above the stone wall.

Bingwan crouched at the top of the ridge, nervously watching the situation below, watching the black shadow follow the stone wall towards the middle, getting closer and closer to a black iron gate

Li Xu had already seen that there was an area in the middle of the stone castle that shimmered with a metallic luster in the moonlight, and it must be the entrance gate to enter the fortress.

He cautiously pressed against the stone wall, for fear of being attacked by a rain of arrows again.

Trembling and quietly approaching the gate, what made Li Xu strange was that the enemy had already known about his arrival and sent out a rain of arrows to intercept it, but until now, he had not opened the gate to attack

Could it be that there are not many enemies in the fortress?

If there were too many of them, they would have rushed out to clean up themselves.

This thought suddenly popped into his heart, which made him bolder and bigger, and he simply rushed to the place that radiated a metallic luster

When you come closer, you will see two huge black iron gates, the gates are four or five meters high, each door looks like a giant bed board, which looks very spectacular.

Moreover, these two gates fit perfectly into the stone wall, and it is almost impossible to spot without paying attention.

The black door panel was illuminated by the moonlight, exuding a dark and faint luster, Li Xu stretched out his hand suspiciously, and gently knocked on the door panel

Knock knock

Just a finger slightly out of the iron door, but the sound was extremely loud, which frightened Li Xu's eyes

But after two or three seconds passed, there was no sound coming from the castle, which made him even more emboldened.

Li Xu could be sure that the number of enemies in this was really small, and he didn't dare to come out to fight.

But how do you open this door?

The two iron doors were tightly closed, with only a hair-like trace in between, and the surface of the iron door was smooth, finding the keyhole and any mechanism to open the door.

Li Xu curiously looked at the gate in large quantities, looking for mechanisms to open the door everywhere on the stone walls on both sides.

What exactly does this mysterious castle mean by being systematically set up here, and it is the building of the opposing camp?

His curiosity had been quickly aroused and he just wanted to go in and see what was going on

After a while, the walls on both sides were searched, but nothing was found.

Li Xu decided in his heart that he must open this door by adopting a destructive method.

He took his shield on his back, hung his sword back at his waist, took out the hammer and hammer from the package, aimed it in the middle of the two gates, and nailed it down

Bell, bell, bell

The deafening sound of metal knocking startled him.

Suddenly, a black hole appeared on the wall, and countless arrows flashed with cold light

Whoosh

The rain of arrows in the sky was launched, shooting from the front wall towards the opposite mountain wall, frightening Li Xu to stand in place, watching the arrows whistling past him, turning the stone wall behind him into an arrow target, densely filled with countless feather arrows!

However, not a single feathered arrow attacked him.

Damn it, dare you scare me?

Li Xu can now be sure that the defense force in the castle is insufficient, and he can only rely on these dark arrows and turrets to defend against the enemy, and he does not dare to open the door to trouble himself.

This time, he was even more courageous, and struck the hammer hard, struggling to nail the steel drill into the gap

Jingle bell

Sparks splashed in the midst of countless metal strikes, but the gate didn't move.

Li Xu, who knocked on his arms numbly, finally reluctantly gave up this means of opening the door and began to think of other methods.

Could it be that the hammer and steel drill are not powerful enough to open this iron door?

Li Xu put away the steel drill and hammer, looking for suitable props in the package

To deal with this iron gate, the gold shovel can no longer be used, according to the method of use he has figured out, the scope of use of the gold shovel is only the initial environment of the field set by the system.

For example, against city gates and system buildings, the gold shovel will not be able to play a powerful function

Li Xu searched for a long time, but he didn't find a suitable prop, and under the helpless gate, he watched the arrows continue to pass by, and the whistling sound was endless

Pregnant!

Looking at those small holes in shooting arrows, Li Xu seemed to have thought of a way.

According to the position of the arrow holes on the stone wall, he suddenly found that the small holes were like beehives, densely covered with the entire wall, but in the bottom corner of the right side of the gate, there were irregularities.

On the left side of the gate, the arrow hole is open all the way to the bottom of the door frame, but on the right, there is a blank space, just a black stone brick

Could it be that the mechanism that opened the door is here?

Li Xu squatted down excitedly, dodged the arrows that kept shooting, stretched out the gold shovel in his hand, and gently tapped on the wall.

Boom!

A crisp voice sounded, which really confirmed his guess that there was really something strange in this stone slab!

Lying down and quietly approaching this wall, Li Xu stretched out his hand and touched the stone slab, and found that it was a slightly raised stone brick, and he lifted it with his hand

Click!

The slate bounced up, and a groove appeared

A round iron ring in the groove suddenly made Li Xu excited, and he stretched out his hand and pulled it hard.

Kerala

The ring was pulled out more than two feet long, and a thick iron chain was attached to the back.

airplanes

Suddenly, a dull sound came from the side, and I saw that the two iron plate gates actually slowly slid open to the sides, revealing a huge passageway.

Oh yes, that's it.

Li Xu stood up happily, put away the golden shovel, held a shield and a long sword, and walked into the gate vigilantly

As soon as I entered the gate, I saw a huge hall, but this hall was divided into several floors, and on one side of the round hall, there was a wooden staircase that led to the entrance to the second floor.

There was not a single enemy in the hall, which made Li Xu a little surprised, where were those guys who released arrows?

He turned his head curiously to look at the wall, but was surprised to find that there were countless crossbow machines densely distributed on the stone wall, which were constantly firing feather arrows, each crossbow machine had its own arrow magazine, and each arrow fired would automatically replenish the arrows.

I'll go, it turns out to be a trap arrow!

Only then did Li Xu understand why those feathered arrows could be sent out in a steady stream, but no enemy went out to deal with him.

There really weren't a few enemies in this castle.

Now that he knew, someone must have opened the mechanism of this ancient castle, as long as he found it!

However, now you have to find a way to get Bingwan to help, otherwise you won't be able to fight the enemy.

Li Xu looked at the densely arranged arrows and crossbows on the wall, each row of crossbow machines was connected to an iron bar-shaped mechanism, and every time the iron bar moved, a row of crossbow arrows would be fired directly.

He knew what to do

Li Xu quickly rushed towards the stone wall, and the shield in his hand smashed into the long iron bar

There was a muffled bang, the iron bar was smashed and bent in an instant, only the sound of clicking was heard continuously, and this row of crossbow arrows was directly reimbursed, and the arrows could no longer be fired.

The real yàn succeeded, Li Xu was not in a hurry to find the enemy, so he jumped up and down three times and divided five by two, and quickly killed all the crossbow arrows on the entire wall

In less than a few minutes, the rain of arrows outside the stone fort stopped, and Yiqiē finally quieted down.

"Bingwan, hurry down, there is no danger anymore." Li Xu also ran out of the stone castle and shouted towards the top of the mountain.

"Oh, I see, right now." Bingwan got the news of safety, and her agile figure immediately descended down the ladder made of steel drills, and soon came to the front of the stone castle.

"There are not many enemies here, but there are dense organs, you have to listen to me here, if there is danger, you just leave by yourself, don't think about saving me." Li Xu admonished.

"Well, I see." Bing Wan said meekly.

"You" Li Xu looked at her with some doubts, you must know that this beautiful assassin is as fierce as fire, why is she so obedient now?

But he didn't have time to think about it so much, so he took Bingwan and walked into the door quickly.

The two of them made their rounds through the empty hall on the first floor, only to find that there was nothing to be seen except for a few scattered pieces of iron and ore.

"Let's go to the second floor." Li Xu immediately took the beauty straight to the stairs on one side.

Climbing up the wooden staircase, the space on the second floor appeared in front of them

The layout here seems to be much more complicated, only to see that on the opposite wall, there are square holes, directly facing the Death Canyon, and in front of the holes in each direction, there is a giant crossbow machine!

On these crossbow machines, thick and long arrows have long been collided, pointing at the entrance of the cave like a pillar, and it seems that they are used to block the canyon.

"Oh my God, there's a thousand crossbows here!" Bingwan exclaimed.

"What's a crossbow?" Li Xu asked suspiciously.

"This crossbow machine is a powerful weapon specially used to deal with large-scale legions, this crossbow arrow hits very poorly, but when the opponent is numerous, this crossbow arrow can shoot through a distance of 100 meters in a line!" Bingwan replied.

"I'll go, there is such a strong mechanism," Li Xu exclaimed.

However, looking at the long crossbows arranged at the window, the number has reached more than a dozen, but each crossbow machine is either missing wheels or the winch is broken, and there seem to be few intact ones.

Groov

Just as the two of them were checking the crossbow, there was a sudden slight noise overhead, which made the two of them come back to their senses at once

"The enemy is upstairs, I'll go after him!" Bingwan was about to run.

"Stop, I don't know what's going on, you're following me." Li Xu shouted.

"I know." Bing Wan was just about to get angry, but she instantly became docile and stood behind Li Xu obediently.

The two of them rushed to the third floor of the staircase, looking for the source of the strange noise

This enclosed castle has only one staircase passage, and this hidden enemy has no way out!

Li Xu was excited in his heart, but he rushed up the stairs with Bingwan very carefully, standing still at the top of the staircase, listening carefully to the situation on the third floor