Although sending the giant mantis out can easily kill the mummy guarding the mercury mine and even the Phantom Charger, this is too dependent on the giant mantis.

The capture of the mercury mine was originally a comprehensive test of Lao Ma's crossbow.

The sky gradually became darker, and Cheng Kong did not stay here for too long, so he led the team back.

When everyone returned to Black Crow City, it was completely dark, and many wild animals that were not very moved during the day also began to move around in the mangroves.

Cheng Kong took Murong Xue to talk to Sofia, while Lao Ma was excited to put the crossbow on the city wall.

In Black Crow City, some wild animals break into the surrounding Black Crow City every night. For Black Crow City, these wild animals are undoubtedly a threat. They must not be allowed to settle down and need to be removed as soon as possible.

After Lao Ma learned about this, he patted his chest and shouted, leaving this matter to himself.

This is the first time tonight, when crossbow arrows were shot out from the head of the Black Crow City, the field of vision was much wider than that of the mercury mine.

From the tree wall of Black Crow City to the mangroves, there are about 700 meters that do not grow any mangroves.

This is an inevitable phenomenon. As a general of Black Crow City, Sofia would not let the tree walls grow with mangroves. In that case, it would be extremely unfavorable to defend the city.

Think about it, there are trees outside, and people don’t even have to prepare for siege, so they climbed up directly.

Although the mangroves and the Black Crow City's tree walls are all trees, their essence is not the same.

Each tree species that forms the Black Crow City tree wall is extremely smooth and hard, and when it grows into a steel. Otherwise, how could it be used as a material for the city wall?

But I won’t mention the mangroves, I have already said a lot before.

In short, Lao Ma also tried to practice crossbows, set up the crossbows, and then snatched the strings, and shot an arrow towards the mangroves closest to the city wall.

This arrow was really powerful. It pierced more than ten mangroves in one go before it was inserted into the ground.

Of course, this is also the reason why Lao Ma lowered the shooting angle. If he raised it a little, he might be able to wear a few more big trees.

On the city wall here, Lao Ma practiced with mangroves and had a lot of fun, while Cheng Kong on the other side gave Sophia time to send some people to clean up the outer wall, and cut down all mangroves to avoid affecting the shooting of the crossbows. For a considerable period of time, Cheng Kong was ready to let Lao Ma act as the main force in defending the city.

Sofia agreed to Cheng Kong's request without any hesitation. Sofia would not refuse anything that was beneficial to Black Crow City.

Next, Cheng Kong had nothing to talk to Sophia, and then said goodbye to leave. Fortunately, perhaps because Cheng Kong brought Murong Xue to come, Sophia did not show any temptation. The complete business and business model prevented Cheng Kong from being twisted by Murong Xue after leaving.

Back at the wall, Cheng Kong saw balls of white light flying towards the old horse on the city wall.

With the city as the backrest, Lao Ma's crossbow cannons can exert their maximum power. Those wild animals wandering in the surrounding mangroves were accidentally hit by crossbow arrows.

Cheng Kong stood beside Lao Ma, his eyesight was much better than Lao Ma, although many wild animals were killed were blocked by some mangroves.

But Cheng Kong saw that several wolf-headed monsters were still penetrated by crossbow arrows and then exploded into pieces of flesh in the sky.

Seeing this scene, Cheng Kong couldn't help but feel a little shocked. Now Lao Ma has really changed his cannons, and the violent bombing of Chiluo is naked.

The crossbow shot on the body was not very pleasant.

Lao Ma practiced for more than two hours, and it was really effective. When he was about to go to bed, the time for Lao Ma to fill in crossbow arrows and twist the bowstring had been shortened to less than two minutes.

This is a good start, but it will be difficult to significantly shorten the time in the future.

After all, no matter how fast Lao Ma is, the filling of the crossbow requires a process. It does not mean that you will be filled with your butt and the bowstring will be straightened.

What's more, if you really enter the battle, will the old horse's hands shake a few times and will they be nervous, and may also affect the speed of filling the strings.

Of course, no matter what, this is a good start.

The next day, Cheng Kong and his men set out again. After arriving at the periphery of the mercury mine, everyone was once again engaged in the promising career of cutting down mangroves. Only the old horse squatted on a pile of cut down mangrove trunks, constantly practicing the steps of filling and twisting the strings.

This was something Cheng Kong forced him to practice. There was no way. If Lao Ma's speed of filling and twisting strings was increased, it would be powerful when fighting.

After all, Lao Ma Ke does not have rapid firing skills like Murong Xue, so he has to practice.

Next, it was a whole day to cut down trees until the sun sets. Basically, the mangroves leading to the mercury mine were cut down, and only more than a dozen mangroves were left on the edge of the mercury mine.

Cheng Kong ignored these more than ten mangroves. It would not be too late to push them down during the battle tomorrow. At this time, he would probably lead the mummy out directly when cutting these trees.

I will come back again, it will be the next morning.

This is also Cheng Kong's last day in the hero world. If he hadn't managed to get the mercury mine today, the next time he came in, the mangroves might have grown again, and it would take two days in vain.

When he arrived at the place, Cheng Kong's first thing was to use the cut down mangroves to build several arrow towers for the old horse, forming a small arc to surround the passage entrance.

Except for the arrow tower that hit the point was for Lao Ma, several lizard men were stationed on the rest of the arrow tower.

Each of these arrow towers is about ten meters high and is high, which will undoubtedly increase the range.

As for the other wolf-headed monsters, they are all piled around the Laoma Arrow Tower. In short, if you want to rush up from the ground, you have to see whether these wolf-headed monsters agree or not.

Of course, Cheng Kong and Murong Xue also stood on this arrow tower to protect Lao Ma on the spot. Although there were only a few phantom archers in the mercury mine and more than thirty mummies guarding it, who knows if there are any other guards in the mine?

No one knows this before the battle breaks out.

Several wolf-headed monsters sneaked over, held up their axes and cut down on the few remaining mangroves.

Cheng Kong could see clearly in the arrow tower. When the wolf-headed monster cut, the mummy on the mercury mine became turbulent and began to walk slowly towards this side.
Chapter completed!