Tian Mo and Xiao Ao went through a few days of trekking, and finally came to Dongmu City. Because they are all from big cities, they are not surprised by the prosperous scene inside after entering Dongmu City.

It was daytime, and there was still a lot of time, and after finding an inn, they began to go out to look for some clues in Dongmu City.

The architectural style of Dongmu City is somewhat similar to some of the styles of the Eastern Realm in ancient times, which also indicates that the Nether Family began in the Eastern Realm.

Tian Mo and Xiao Ao acted separately. Tian Mo is more introverted and not good at communicating with people, so he and Nandena go to the local library to look for some clues. And Xiao Ao and the others went to the tavern and other places here in search of some useful information.

The library here is very large, several times larger than Sims City, and the books in it are also diverse, almost catching up with the reading library of Shengyu Academy.

Tian Mo likes books very much, and so does Nandena. If it weren't for the fact that they had important business to do, they would have stayed here for a few days. Now they have to go to the room where the local history books are recorded to find clues. Here, he and Nandena looked through many books about the Nether Family, and although there were many beautifying elements in the contents, they still got some useful information, such as the Netherworld family likes to keep valuable things in the underground treasure room of the Nether Tower, and presumably a relic of Aaron's allies must be hidden here.

In the evening, Tian Mo took Nandena back to the hotel, and Xiao Ao and the others had already returned.

Everyone found a private room and exchanged information about the day while eating.

Celestial Desert told them that the relics they needed might be in the underground treasure room of the Nether Tower.

Xiao Ao: Some of the information they got today is almost the same, but it is much more difficult to enter the Nether Tower than to enter the Nether Villa in Anli City, and there are no important gatherings in the Nether Tower recently, and they don't have a chance to blend in with the people who want to join the party.

"So what are we going to do?" Nandena asked.

"It seems that we still have to investigate again, no matter how tightly defended the Nether Tower is, there will always be a time when there will be a lapse, as long as we can seize this opportunity, we can enter the Nether Tower. "Xiao Ao is still very confident that they will enter the Nether Tower.

Everyone else nodded, and they all believed in Xiao Ao.

The next day, they were still divided into two groups to look for some clues.

Tian Mo took Nandena into the reading hall again to see if he could find some maps of the internal structure of the Nether Tower.

Xiao Ao and the others entered the hotel and took the opportunity to chat with some local people to find some new clues.

After a few days, Xiao Ao finally found an opportunity, and Tian Mo also found the architectural sketches of the interior of the Nether Tower in some books.

The Nether Tower will find someone to maintain the Nether Tower every month, and this is also a good opportunity for Xiao Ao and them to enter the Nether Tower. He and Tian Mo and the others pretended to join the maintenance department, and then used a little money to hand over the task of maintaining the Nether Tower to them, so that they could wear the clothes of the maintenance department and enter the Nether Tower with the certificate of the maintenance department.

After a few more days, it was finally time for them to maintain the Nether Tower, and O'Small, Bruce, and Alfred finally infiltrated the Nether Tower posing as employees. Lucia and Nandena pretend to rest in a café near the Nether Tower, ready to deal with some unexpected situations.

After Xiao Ao and the others entered the Nether Tower, they looked at this magnificent building, because they all looked at the sketch of the Nether Tower handed over to them by Tianmo a few days ago, so they had a preliminary understanding of the internal layout, although the Netherworld Tower has undergone some renovations over the years, but it has generally not changed.

They took some tools and pretended to check around the Nether Tower, during which Xiao Ao and Tianmo began to approach the entrance to the Nether Tower's underground treasure room.

The decoration in the Netherworld Tower is very gorgeous, both the style of the East Realm and the characteristics of the West Realm, it can be said that the two civilizations of the East and West Realms are perfectly combined together, whether it is the oil paintings on the wall or the antiques placed on the place, they are very innovative. This made Tianmo and Xiao Ao both sigh that the designers of this building are really very level.

The defenses within the Nether Tower were also as they thought, very tight, and there were almost one or two elite guards in each room. And some inconspicuous places on the wall and ceiling are painted with some special spells, these spells are similar to the magic lamps outside Shengyu City, and they all play a role in monitoring every move here at any time. Especially in some important places, these spell patterns are even more dense, and one can be seen almost two or three meters. These spell patterns are also very delicately drawn, and they fit perfectly with the background such as the wall, not at all abrupt, but more beautiful. Fortunately, Xiao Ao had read some elementary Yin Yang spell books and had a little understanding of these patterns, otherwise they would have been discovered long ago if they acted rashly.

When they entered the maintenance company, Xiao Ao also specially trained Alfred and Bruce to know how to inspect and maintain the building, so the two of them are now checking some areas in the Nether Tower that need maintenance, such a professional inspection does not arouse the suspicion of others.

Xiao Ao and Tian Mo also checked while walking in the direction of the treasure room, there happened to be a place that needed to be checked, and that place was very close to the entrance of the treasure room, as long as there was a chance. Xiao Ao and Tian Mo can enter quietly.

As they walked and watched, the gate of the Nether Tower opened, and an acquaintance walked in from the outside, it was the Netheryang who had finished the affairs of Anli City, and he was followed by some guards. However, at first, he didn't care about Xiao Ao and the others who had already been disguised.

Xiao Ao and Tian Mo saw that it was the Netherworld, so they immediately turned around, turned their backs to him, and pretended to start checking some nearby walls.

When Nether Yang walked behind Xiao Ao and them, he suddenly stopped and looked at Tian Mo and Xiao Ao who were facing away from him.

"Who are these two?" asked Nethersun the guards beside him.

"This is the employee who came here to maintain the building. The guard told Netheryang.

Nether Sun nodded, "You two turn around." He shouted at Tian Mo and Xiao Ao. He always felt that these two people were a little familiar in his heart.

Xiao Ao and Tian Mo turned around, and Netheryang saw that their appearance was indeed not someone he knew.

"What's the matter?" Xiao Ao and Tian Mo bowed slightly, they had to show some respect to Nether Yang here.

"It's okay, you can get on with your work. "Netherworld has other things, and when he found that these two people were not special people, he didn't bother to investigate them, after all, this was Netherworld Tower, and he didn't believe that anyone here would dare to come and ask for trouble.