Chapter 1464： Unmanned outer city

When Xu Tianyu entered the cave entrance, he discovered that there should be a passage left by some animals. It was not big, and he could barely move forward.

"Climb, climb."

It took more than half an hour before Xu Tianyu and the others came out of the cave.

The place where they are, is on the edge of the wall of Hard Rock City, looking at the dilapidated buildings around.

Xu Tianyu predicted that their location should be a slum.

"White Demon, take someone to look around, and be careful not to be discovered by the Demon."

"it is good."

The White Demon left with seven players, and Xu Tianyu took Yang Qin to a house that looked reasonable.

There are cobwebs and dust everywhere in the room, obviously it has been abandoned for a long time.

"Master, this is a house left by the residents of Hard Rock City. Since it was occupied by the devil, no one has lived here."

"Ok."

Xu Tianyu nodded, then said.

"Yang Qin, do you know any way to bring down those city walls?"

Xu Tianyu had just seen those city walls, they were weathered, and it was obvious that the demon of Hard Rock City had not repaired the city walls.

If they can push the walls of Hard Rock City, they will get a head start in this victory.

"Master, it is very difficult to push to the city wall. The thickness of the wall of Rumbling Stone City is more than five meters. Although the surface is weathered, it is all hard obsidian inside. It is very difficult to destroy it, even if you use the spider queen's self-destructive little spider , Are unable to complete such a task."

Xu Tianyu was not unlucky, but thought of the cave where they had just entered.

"Yang Qin, at the entrance of the cave we just came in, we can see that the underground of the city wall here is nothing but mud. If we hollow out the underground of the city wall and bombard it with self-explosive spiders, is there a possibility of pushing it? ."

This time Yang Qin was silent, obviously thinking about the possibilities in Xu Tianyu's words.

"Master, I have to say that you have a very good idea, but the city of Rumbling Stone covers an area of ​​more than ten kilometers. It is a very difficult task to hollow out the outer walls, and there is a sound of excavation, it is difficult to be sure that it will not be The devil found it."

"Hehe, as long as it is feasible, time, there are some."

Xu Tianyu smiled, he hasn't forgotten that he still has the black-backed pangolin that he has studied successfully before.

Although the number is small, the ability to dig holes is definitely very powerful.

It only took two days to dig through the entire Demon Lake.

Although Hard Rock City is larger than Demon Lake, the black-backed pangolin can definitely complete the task in five days.

Thinking of a way, Xu Tianyu immediately contacted Huang Jiajie, because after digging a hole, the black-backed pangolin was useless.

So Xu Tianyu took the black-backed pangolin back to Tianyu City and raised it. He didn't expect that it was time for them to show off their skills.

Huang Jiajie quickly replied. It is estimated that within two days, the black-backed pangolin will be sent to the outside of Stone City.

Xu Tianyu ordered the players who were still on the river to prepare to explore the Stone City again.

Xu Tianyu shuttled in the room, but obviously the effect was not very good, and there was no discovery.

At this time, the White Devil and them also returned.

"Tianyu, we groped around in the city of Unrefined Stone, and found that the entire city of Unresolved Stone was divided into an inner city and an outer city. The inner city wall was only five meters high and not very thick. All the demons lived in the inner city. "