Before Wu Dongfang spoke, the three of them had already stood up, and after Wu Dongfang finished speaking, the three of them immediately went their separate ways, Lane was in the south, Injla was in the center, and Buck was in the north, each responsible for a hundred miles of range, and searched closely from east to west.

The trio used the astigmatism technique, which Buck had previously used to find the two snake demons, which could penetrate obstacles, including the sand and gravel in the desert, but this technique had a drawback, that is, the search range was relatively small, and it required constant astigmatism sensing.

When Ryan and the others searched forward, Wu Dongfang did not stay in place, but accompanied him all the way, the enemy's camp was probably somewhere in this area, hidden under the gravel, but he could not sense the enemy's breath, if the enemy really existed and there was no abnormal breath, he could jump out from the ground at any time to attack Ryan and the others, he must closely observe and protect with him.

A quarter of an hour later, Injla, who was in the middle of the lane, raised her right hand, and Ryan and Buck immediately approached her quickly, and after the three of them met, they once again cast the astigmatism technique, using the reflection of golden light to determine the situation underground.

Wu Dongfang is located five miles east of the three people, and according to the actions of the three people, it is not difficult to find that they have determined that there is a building underground in the area, and the reason why the light is frequently astigmatized is to determine the details of the underground building.

Ryan and the others kept changing their positions from the air, and according to the movement trajectory of the three of them, this underground construction area is very large, and it can be determined that it is five miles in radius at present.

Wu Dongfang took out a fire spirit bead from his bosom and crushed it, this underground building is only dozens of miles away from the Gobi in the east, and the location is seriously suspicious, it is time to call Xin Tong over.

After a while, the three stopped their search and came to meet Wu Dongfang.

Without the three of them talking, Wu Dongfang determined that the three of them must have found some very suspicious clues based on the solemnity on their faces.

After landing on the ground, Ryan was the first to speak, "The radius is about fifteen miles, it is irregular and circular, the buildings in the city are relatively intact, the interior is not blocked by sand and soil, and there is a lot of space. ”

"There were living creatures moving in it, and there were many of them, in human form. Astigmatism is somewhat similar to modern radar, Buck said, in that it can determine not only the shape of a city, but also more detailed and specific targets.

Injla crouched down and used her fingers to draw the general outline of the city from the sand, as well as several large buildings in the city, "The city is about fifteen meters above the ground, the sand is covered with hard soil, the thickness of the hard soil layer is about five meters, and there are dozens of stone pillars in the city supporting the top of the hard soil roof, I think this city is not caused by the subsidence of the city, but was originally built underground." ”

Wu Dongfang nodded slowly, what Injila said is in line with the objective situation, this is a desert area, and dozens of miles to the east is the Gobi, which shows that desertification is spreading from west to east, and it is reasonable for the last group of residents who lived here to build the city underground in order to resist the approaching desert invasion and harsh climate.

"How many people are down there?" Wu Dongfang asked.

"A lot. Injla's expression was solemn.

Buck adds, "They're not staying in a fixed position, they're moving quickly underground, and they've probably spotted us." ”

After introducing the situation below to Wu Dongfang, the eyes of the three of them focused on Wu Dongfang's face.

Wu Dongfang tilted his head and looked at the sun, it was almost three o'clock now, and the sun would set in three hours.

Seeing that Wu Dongfang was silent for a long time, Buck said beside him, "If they have already discovered us, the longer we wait, the more fully prepared they will be." ”

Wu Dongfang nodded, and then said, "Where is the central area, take me there." ”

The three of them stepped on the ground and took the lead in leading the way.

Once at the ground, Injla curled her finger and said, "Just below us." ”

"You stay on it, and I'll go down and open a skylight for them, so that they can bask in the sun. Wu Dongfang said with a smile.

"Wu, wait a minute. Ryan called out to Wu Dongfang.

Wu Dongfang turned around when he heard this, and Ryan whispered under his fingers, "Is it feasible to smash the dome?"

Wu Dongfang didn't answer immediately, Ryan meant to destroy the hard soil above the dungeon and let the sand on the ground pour into the dungeon.

"Do you want to bury them alive or force them up?" Wu Dongfang asked rhetorically.

Ryan replied, "If they were the undead legions of Greece, they would be able to fly, and it is unlikely that they would be killed with sand, and I think it would be very disadvantageous for us to force them to come up, and to fight from the ground would be very disadvantageous to us." ”

Wu Dongfang nodded, turned his head down and looked down at the terrain below, and after careful observation, he selected a low-lying area, this area is surrounded by huge sand dunes on all sides, once this place is destroyed, a large amount of sand will be poured into the underground city on all sides.

Once you've decided on the area to get started, the next step is to determine how big the skylight should be, and if it is small, the sand will be slower downwards. If the things below fly up like a swarm, the three of them can't kill them.

After a short period of deliberation, Wu Dongfang fell to the ground, and used the method of concrete to condense the sand in the area into an earth wall to protect the four sides, using it as a sand retaining wall, removing the sand and soil in the wall and extending the sand retaining wall downward.

In this way, it didn't take long to reach the hard soil layer below, Wu Dongfang's right hand probed down, centered on himself, and scattered the aura around the ten zhang square, and then vibrated his arm to exert force, destroying all the hard soil within the ten zhang range.

While shattering the dome, Wu Dongfang took advantage of his strength to rise into the air and looked down at the situation below from the sky.

At this time, the sun was very strong outside, the dungeon was pitch black, and the rapid influx of a large amount of sand and soil also blocked the view, so it was impossible to determine what was going on below.

While Wu Dongfang was looking down and observing, Ryan, Buck and Injla quickly dispersed, each holding a weapon and guarding three sides.

Ryan's weapon is a golden long sword, Buck condenses a long weapon similar to Fang Tian's halberd, and Injera holds a three-foot strong bow in his hand, the whole body is golden, the bow body is thinner, the bowstring is also yellow metal condensation, there is only one arrow, and the arrow is extremely sharp, accounting for one-fifth of the total length of the arrow.

With the influx of gravel, a strange smell of acid and rot emanated from the dungeon, mixed with a strong smell of blood.

There was no sound coming from the dungeon except for the sound of the hard earth hitting the ground, followed by the rustle of the gravel pouring down from above.

The four of them exchanged glances with each other, there must be an enemy below, but the dome of the hiding place was stabbed into a big hole, and they did not panic, which means that the other party probably knew that they were coming, and they were fully mentally prepared at this time.

The sand poured rapidly from the heights, causing heavy smoke and dust to come out from below, making everyone's view even more obstructed.

"I'll go down and have a look. Wu Dongfang said to the three of them, and after saying that, he cast an immortal golden body and rushed into the gap, blinking quickly below, adapting to the dim light underground in the shortest possible time.

I thought that I would be attacked immediately when I came to the underground, but I didn't expect that no one would come to attack him, fixed his body, looked down from a high position, and couldn't help but gasp, this underground city was full of people, there were men and women, old and young, these people looked no different from ordinary people, they were looking up at this time, their eyes were also very smart, they could be sure that they were not dead, but these people were all not wearing clothes without exception, they were all white.

In addition, these men stood in very neat formations, like soldiers, and there were more than a thousand people in each formation, and there were eight formations in various parts of the city, numbering about 10,000.

He also stood below his position for a while, but this time the formation changed, apparently avoiding the sunlight shining from above.

"As long as you're afraid of light, it's easy to do. Wu Dongfang rushed out of the gap with his spiritual energy, and quickly looked around to the left and right, looking for a suitable location for destruction.

At this moment, I suddenly noticed that the light was dimming, and when I looked up, I saw a strange dark cloud appear above without warning...