While Qin Xiaoyue and the others were cleaning the rats, she noticed some unusual movements. For example, these mice seemed to be a little anxious.

"Yue Er, something's wrong." Xiao Chen also discovered this scene.

"Yes, these rats are a bit restless. All three of you, quickly stand up. It seems like the leader of these rats is about to appear." Qin Xiaodong shouted to the three men resting on the ground.

However, those three people couldn't get up. They were sitting on the ground and had gone completely limp.

"We can't stand up." Little Four was still a little more clear-headed, but Eldest Brother and Second Bro weren't as good. The two of them had already passed out.

"Yue Er, the other two have fainted." Qin Xiaodong was relatively close to the three of them, so he could clearly see their situation.

Qin Xiaoyue and Xiao Chen also arrived in front of them. They could only do their best now. As for whether the three of them could survive or not, that would depend on themselves.

Soon, Qin Xiaoyue noticed a group of rats with her divine sense. With the appearance of these rats, these large rats started to tremble violently.

"The Rat King is among those little mice, it looks like he's already level three." Qin Xiaoyue observed the group of rats.

"What?" A Level 3 mutated rat? " Xiao Chen was astonished. They had put so much effort into reaching the peak of the third grade. How long had it been since that mouse had already reached the third grade?

Little Four was now totally powerless, and they could not even handle such a normal rat. Now that a Level 3 one appeared, they were probably done for this time. Thinking about how he was only nineteen and Little Four's tears were already flowing, he still didn't want to die.

"You have no future. If you don't want to die, then stand up and persevere." Qin Xiaodong said at this time. Although the sky was already very dark, under the observation of their spiritual energy, the surrounding situation couldn't be hidden from their eyes.

Little Four felt a bit depressed and panicked. Were these people's eyes really that good? He had only shed a few tears, but they had already discovered it. He held his breath and struggled for a while. He didn't expect to really stand up.

At this moment, the Rat King had already stood opposite of Qin Xiaoyue and Xiao Chen. From the looks of it, he was not afraid of them and was even a little arrogant.

"It must be here to demonstrate its might!" The corner of Xiao Chen's mouth twitched; now these beasts actually dared to show off in front of them.

Qin Xiaoyue shot out a bolt of lightning and struck directly at the Rat King. She thought that the Rat King would just stand there and not move, but she didn't expect that the Rat King would suddenly move somewhere else.

If the Rat King had hands now, he would probably be wiping off his cold sweat. He didn't expect these humans to be so powerful.

At this moment, Xiao Chen's attack also caught up. The Rat King's escaping technique was not bad. However, although it managed to escape, the mice around it suffered. Batches after batches of rats fell.

Meanwhile, the small mice around it that didn't have much offensive power pleasantly surprised Qin Xiaoyue and the others. This was because the crystals dropped by these rats were all level two.

Qin Xiaodong picked up the crystal core as he attacked. There were too many of these, and they were all Rank 2. He felt that he had hope for a breakthrough this time.

Qin Xiaoyue followed Xiao Chen as they chased after the Rat King to attack him. At this moment, because of the Rat King's panic, all the mice started to run for their lives. They were much easier to deal with than before.

Finally, Qin Xiaoyue's lightning bolt struck the Rat King, causing it to suffer a small injury and slowing it down. The more times it was hit, the more it was hit. It was only when Xiao Chen made the fatal strike that it fell down. When Qin Xiaodong took out the crystal core, he felt the vigorous energy in it, causing him to become excited.