Xiao Chen wanted to find more clues about the big man in this room, but after looking around, he didn't find anything more.

In the end, Xiao Chen tried to further confirm with Duan Xiaoxiao, trying to find more detailed clues about the man, but unfortunately Duan Xiaoxiao couldn't say anything except describe the man as tall and tall.

However, even this "tall and tall" may not be completely convinced, because in the eyes of children, basically all adults belong to the category of "tall and tall".

Xiao Chen could only start to guess by herself, if this man came here just to find Qin Yao, then she should have left immediately after she found out that Qin Yao was not there. But he rummaged through the place, suggesting that he probably didn't come here to find someone in the first place, maybe he was looking for something!

And there seemed to be no other valuable items in this room other than the laptop they had seen earlier......

Don't...... He's also here looking for a laptop?

It seems that this is the only explanation! And the only thing of value in the laptop is the video.

Xiao Chen finally searched the house again, and after finding that there were no more clues, he began to take Duan Xiaoxiao and the little white dog towards another residential building opposite.

As soon as he approached the residential building here, Xiao Chen saw the little white dog in his hand suddenly stand up!

That's right!

It stood up like a human on its hind legs, standing in Xiao Chen's hand, looking very excited!

Xiao Chen glanced at Duan Xiaoxiao, Duan Xiaoxiao understood, and immediately shook his head and said, "No, I didn't feel anything." ”

Xiao Chen frowned, and said in his heart, what is this little white dog excited about? Could this really be its home?

At this time, Duan Xiaoxiao continued: "Brother Xiao Chen, I think you should be able to feel the position of the energy as well. ”

"Why?" Xiao Chen asked suspiciously.

"Because...... I think you're better than me. Duan Xiaoxiao said with a very innocent expression: "Even I can feel it, you shouldn't be weaker than me." ”

Xiao Chen frowned, it wasn't that he couldn't feel it, but the sensing distance and sensitivity seemed to be much worse than Duan Xiaoxiao's.

And Duan Xiaoxiao said that he was stronger than her, Xiao Chen really didn't have this certainty, and he hadn't competed with Duan Xiaoxiao head-on with energy now, not to mention the little white dog who couldn't even save himself, but he could only let Duan Xiaoxiao help.

Xiao Chen just told Duan Xiaoxiao with kind words at the moment that she should continue to be vigilant, and then cautiously groped into the residential building......

Although the sky is completely dark now, the building does not have the gloomy feeling that Xiao Chen had when he came in before.

This is all because there is no longer a grudge here, Xiao Chen even deliberately reached out and touched the singing crystal doll in his pocket, and this doll really didn't show any signs of being hot.

Speaking of this doll, after this period of experience, Xiao Chen actually roughly understood its role.

Needless to say, such as finding the black mist of psionic energy and discovering memories of resentment, Xiao Chen felt that the ultimate role of this doll must be to keep Xiao Chen in touch with Qianqian's ontological ghost.

And he had collected the "parts" of the doll many times before, and these "parts" could be perfectly combined into the crystal doll's body later.

So...... Xiao Chen thinks that it is necessary to collect all the "parts" in order to truly unlock all the skills of this doll?

After entering the building, the little white dog's reaction was even stronger, and even made some slight "whine" sounds.

This is Xiao Chen's first passage little white dog barks...... Feel granny's ...... It's pretty cute.

At this time, the little white dog had already made an impulse to jump off Xiao Chen's palm, Xiao Chen ran away from it, and naturally didn't dare to let it go easily.

The little white dog kept barking overhead, and Xiao Chen felt that the place it wanted to go was the place where he first found it...... Rooftop.

They quickly climbed all the way to the top floor.

After reaching the top floor, the little white dog was completely unwilling to stay in Xiao Chen's hands, it jumped directly and struggled, and then tried to climb up the wall.

But where can it climb up...... However, Xiao Chen could see something through its movements now......

It's ...... now It seems like it's not just excitement...... Even...... Not excitement at all! It's more of a nervousness!

Xiao Chen immediately glanced at Duan Xiaoxiao again, Duan Xiaoxiao seemed to be a little impatient, she immediately shook her head, but before she could speak, her face suddenly changed again.

"What's wrong? Got energy? Xiao Chen hurriedly asked.

Duan Xiaoxiao hurriedly made a silent gesture at Xiao Chen, and then suppressed his voice and said, "Brother Xiao Chen...... There seems to be someone up there! ”

Person......

This person must be an ordinary person who has no energy in his body.

So...... It's normal that they didn't feel anything before.

Xiao Chen hurriedly grabbed the little white dog, and at the same time tried to seal the little white dog's mouth, but he soon found that this action seemed to be redundant, because the little white dog was actually quiet now! But the action on it is still there.

Became a fine for you...... Do you also know that you can't alarm the people on the rooftop?

Xiao Chen was a little drumming in his heart now, first of all, he didn't know how many people there were, and secondly, he couldn't be sure if these people had seen them when they entered this community just now.

It is very dangerous to rush up from the rooftop passage here without being sure of both, because even if it is a complete ordinary person, as long as he has the corresponding equipment in his hand, he can still cause Xiao Chen a lot of trouble.

For example, that powerful flashlight......

Well......

Looks like it's time to learn some new skills.

Xiao Chen quickly clicked on the system skill bar, and then began to sweep towards the newly unlocked fourth-level skill exchange interface.

He fell in love with the advanced wall-piercing technique almost immediately.

Now the thickness of the floor of this rooftop must not be able to pass through the intermediate wall piercing technique, so I don't know if the advanced wall piercing technique can break through this limit.

Xiao Chen immediately clicked the exchange button.

Advanced Wall Penetration: Compared to Intermediate Wall Penetration, the thickness of traversable obstacles has been increased to 10 centimeters, and the speed of traversing obstacles has been increased to a certain extent.

Although the 3000 ghost points are a bit painful, this is also something that will be redeemed sooner or later.

Then Xiao Chen tried to move his body towards the wall on the side, and sure enough, he found that his body could now enter it! And it's a lot faster than before!

In the past, when Xiao Chen used the wall piercing technique to cross the wall or the gate, the speed was extremely slow, because it felt like he was struggling to crawl forward in the sand, but now this resistance is at least twice as low as before!

The thickness of the walls around here is about the same as the thickness of the roof overhead, and you can definitely pass through it directly.

In this way, Xiao Chen had a way to sneak up without them knowing.

However, this is not enough, in the case of unknown enemies, Xiao Chen had better exchange his existing ghost points for a few more offensive or defensive combat skills.

And...... It has to be a little cheaper.

Although the impact bomb can now be studied at level 4, it is not within Xiao Chen's consideration for the time being, because this thing is only lethal to ghost creatures, and the effect on living people is simply negligible.

The same is true for the second-level psionic implosion, and Xiao Chen doesn't plan to learn it for the time being.

In the end, Xiao Chen set his sights on the strong hidden arts and psionic claws.

The former's strong concealment technique made Xiao Chen feel that it was possible for him to regain his stealth ability again, so that it would be perfect with the advanced wall piercing technique, and he could completely do it without knowing it.

Psionic Claws, on the other hand, sound more like an equipment skill, which doesn't involve using psionic energy to carry out long-range direct energy attacks, and may be effective against ordinary living people.

Xiao Chen quickly exchanged both skills.

These two skills cost 12,000 ghost points, and after learning them, Xiao Chen only had 6,100 left......

It's really a lot of money......

Strong Stealth Technique: Temporarily puts the Ghost Avenger in a higher level of invisibility, which is not only invisible to humans on the real plane, but also to ghost creatures on the ghost plane.

Note: This skill consumes a large amount of psionic energy for the duration of the skill, which is exactly the same as levitation.

Exactly the same as levitation...... Then in this way, Xiao Chen has a bottom, and his current spiritual energy reserves are only enough to support the levitation technique for less than a minute, so the duration of the strong concealment technique must be the same.

And then there's the Psionic Claws.

Psionic Claws: Consumes a certain amount of psionic energy to create a pair of energy fists that attach to the Ghost Avenger's hands for thirty minutes.

Although this skill also consumes psionic energy, Xiao Chen can continue to act by building it in advance, and then recovering a certain amount of psionic energy, which is at least much more relaxed than the harsh requirements for psionic energy in the strong concealment technique and levitation technique.

Xiao Chen didn't hesitate, he directly stretched out his hands, and then gathered the spiritual energy on his two fists, and in less than a few seconds, Xiao Chen saw a black fist with several sharp blades growing on the surface of his hands.

Now Xiao Chen can't see its power for the time being, but judging from its appearance, it seems to be quite good......

Moreover, the spiritual energy consumed by this skill was much lower than Xiao Chen thought, and probably only used less than one-fifth of the spiritual energy.

Then Xiao Chen waited for a little more than ten minutes, one was to continue to listen to the movement above, and the other was to wait for the spiritual energy to recover to full.

Then Xiao Chen motioned for Duan Xiaoxiao to wait in place with the little white dog in his arms, and he cautiously walked to the side room, intending to drill up from the edge of the rooftop with the wall-piercing technique and the strong concealment technique!