Though it was called a "small" hill, this smallness was only in comparison to a mountain. For humans, it was still quite large. At least forty meters high at its peak, it was about thirty stories tall.

Fortunately, the hill was rather barren, mainly composed of rock, so there wasn't much vegetation. However, this made things more difficult for Grey Bear, as the hard stone made it difficult to leave footprints or other traces. Tracking would naturally be harder.

But Grey Bear had a method. If there were no obvious traces, then he simply wouldn't bother with them. After all, he had carefully examined the bullet holes before and had a rough estimate of the direction from which the bullets had come. So, he didn't bother checking much and went straight to the top of the hill.

"Here, here, and here!"

Once he reached the summit, Grey Bear took a quick glance and immediately pointed out several locations. He went to one of them, squatted down, and examined the ground for a while. Then, he pointed to a slightly charred spot on the hillside, saying:

"This was scorched by the muzzle flash when the sniper rifle was fired!"

Li Chenzhou reached out, scraped the stone, and smelled it. Sure enough, there was a hint of sulfur.

Grey Bear then went to the other spots and found scorched stones in two more locations. However, no bullet casings were to be seen.

"Judging from the traces, there are a total of three sniper positions, and these three are the best in this area!"

Grey Bear walked around again before returning to Li Chenzhou and saying:

"You can tell that the shooter is a veteran! Very experienced. Besides the scorched stones, he didn't leave any traces at all!"

Li Chenzhou stood in front of one of the sniper positions, looking towards the prison. It was indeed a good position. However, his brow furrowed deeply, as if pondering something.

"What's wrong?"

Grey Bear asked.

"Did you... find these sniper positions based on the habits of your military?"

Li Chenzhou asked.

"Yes!"

Grey Bear nodded.

"According to Qing Lang, the person behind him isn't human. But now... judging from the sniper positions you found, the shooter... seems to have the same habits as humans?"

Li Chenzhou asked Grey Bear.

"..."

Grey Bear's expression immediately changed.

When he heard that Li Chenzhou was looking for the shooter, he searched for directions and sniper positions based on the characteristics of elite human snipers. He hadn't thought of anything else in the process.

But now, after Li Chenzhou's reminder, Grey Bear suddenly remembered that, according to Qing Lang's words, the shooter shouldn't be human.

"What... what's going on?"

Grey Bear couldn't help but break out in a cold sweat, because according to his previous judgment, the shooter was not only human, but the gun used was also almost the same as human firearms, at least using gunpowder.

"If those guys really are from another planet, and even this apocalypse was started by them, then their technology is far more advanced than ours. How could they still be using this kind of gunpowder weapon?"

Li Chenzhou squatted down, looking at the scorched stones, and said:

"Moreover, according to my speculation, this thing that allows me to exchange kill points for evolution potions might be related to one of their sides. If that's the case, then it's impossible for them to be here sniping Ding Ning and the others with a sniper rifle. With their strength, leveling the entire prison should be quite easy.

Besides, the thousand or so corpses in the prison cells disappeared inexplicably, and so many poles were erected in the prison yard in just a few minutes, with all the corpses, including the ones we buried, hung up. Would a guy with such great abilities be a sniper who only dares to hide in the distance and take potshots?"

Listening to Li Chenzhou's reasoning, Grey Bear was also puzzled, unable to figure out why.

That's right! Not to mention Li Chenzhou's kill system, just the ability to move over a thousand corpses away without anyone noticing, and to erect so many poles in a few minutes, was not something an ordinary person could do.

"But... this really looks like a sniper position left by a human sniper!"

Grey Bear said with a wry smile:

"So, I can't explain your question! Or... this shooter, like Qing Lang, is also a lackey who has turned to them? Only these two lackeys came for this operation, and the creatures behind Qing Lang didn't..."

Grey Bear couldn't continue speaking, because if there were only two humans controlled by the mastermind behind the scenes, then the disappearance of the corpses and the corpses on the poles couldn't be explained. This was something that two humans couldn't do.

"Maybe... those guys... can't directly attack humans?"

Li Chenzhou guessed. If that were the case, it would be easier to explain.

The corpses were taken away and the poles were erected by those guys, but for some reason, they couldn't directly slaughter humans, so only Qing Lang and the shooter took action.

"If they can't directly attack humans, then what about those hell wisps when the apocalypse arrived? I'm afraid hundreds of millions, even billions, of humans died at that moment!"

Grey Bear couldn't help but ask.

"..."

Grey Bear's question caused Li Chenzhou to fall into silence. He found that no matter how he thought about it, there seemed to be inconsistencies. What exactly were these mysterious creatures from different camps?

"Right, Grey Bear, since you can find sniper positions, can you find the direction the shooter left?"

Since he couldn't answer the question, Li Chenzhou simply changed the subject.

"Find the direction he left..."

Grey Bear looked around and said:

"I'm not sure. At least, it's unlikely on this mountain. If I really have to find it, I can only go around the hill and see if I can find anything!"

"Okay! Let's go around!"

Li Chenzhou said without hesitation.

It was not easy to discover clues about mysterious creatures, so he couldn't give up. Even if he couldn't find the shooter and the existence behind him, knowing the approximate direction he left in would be good!

So, the two immediately went down the mountain. At this time, Duan Lei and the others were waiting for them in the living room, because of the existence of space transmission, so being in the car or outside was the same.

"Number One, start the car. We'll slowly go around the hill first! Change the scenery outside this window to the ground in front of the car!"

Back in the car, Grey Bear stopped driving, because he wanted to find traces of the shooter leaving, so he sat in the living room and said to Number One. With Number One's reply, Dark Blood slowly started and began to circle around...