The laboratory has been abandoned for many years, and the noise emitted is not man-made or mechanical, and the possibility of the sound being accidental is almost eliminated.

There is a high probability that it is a mutated creature, and it is even more likely that it is the terrifying existence that has made this half of the island insect beast extinct.

At this time, if this voice came from it, was it intended to warn the trialists who had intruded into its territory!

Except for the stealthy No. 3, No. 7 and Song Qingxiao froze suddenly, and the two subconsciously held their breath, listening to the movements around them, and didn't even dare to make extra moves.

The surroundings were quiet again, and the sound of 'dong' heard earlier seemed to be a hallucination born of extreme tension between the two of them.

It may be that the lab has dug too deep into the ground, and there is always a damp and abnormal feeling in the air.

Under the tension, the pores are opened, a large amount of cold sweat is drained out along the pores, every breath, the front chest and back are always close to the clothes, the clothes are cold and wet with sweat, and the moment each paste is pasted, it seems to form a very heavy bondage, making the flesh on the body instinctively tremble slightly.

Five seconds, ten seconds, half a minute......

I don't know how long it took to be silent like this, but Seven swallowed a mouthful of saliva again, and before his expression could relax, there was a soft sound of 'dong ......' in the ears of the two of them.

This time, both of them listened to it really, and it was indeed not an illusion.

No. 7 swallowed for a moment, and the whole person was choked with saliva, but he forcibly held it back, didn't even dare to cough, and bent down to forcibly endure this feeling.

Do you want to go any further? Song Qingxiao was at war with heaven and man at this time.

If there are indeed mutated creatures ahead, advancing may promote the completion of the task, so that the task can be completed sooner, ending this round of trials.

But if you know that there are tigers in the mountains, you still want to go to the tiger mountain, and the possibility of losing your life is also very high.

She was hesitating, and the number three, who was locked under her mental power, suddenly moved.

The moment Song Qingxiao noticed the movement of No. 3, her heart also moved.

Along the way, Number Three followed her unhurriedly, keeping a distance not far from her, obviously sneaking into her heart and not dead.

The three trialists, Seven and Three, were all attacked by mutant creatures and were injured.

After the mutant creature is infected, it is very likely to infect the prey with some kind of deadly infected bacteria, and after the third is injured, it should be aware of the clues, and according to her own situation, it is easy to guess that the condition of the seventh is similar to her.

After the two were infected, there must have been a change in a certain aspect, No. 7 was injured earlier than her, and this change should be more obvious, so No. 3 is not uncommon to plot No. 7, it should be determined that No. 7 is far easier to deal with than Song Qingxiao, so after stealth, he has been following Song Qingxiao's side, wanting to seek an opportunity to start.

After she was injured, she must have been desperate to complete the task before her body changed.

This kind of anxious mentality can easily make people feel like taking risks.

In addition, her ability is special, as long as the ability is not completely exhausted after stealth, she does not take the initiative to appear, and the naked eye cannot capture her existence, at this time, she ventures to spy on the scene ahead, which is very suitable.

She didn't know that her every move had already been exposed in front of Song Qingxiao, if she used No. 3 as an eyeliner, it would be much safer to guess the situation ahead from her reaction, so that the risk would be more secure.

Song Qing was cautious and quietly paid attention to the movement of No. 3.

No. 3 moved forward, already preparing to go down the stairs, standing in the direction of the stairs, she could see far more than Song Qingxiao and No. 7 who were standing in the previous position.

She didn't back down, she was still walking forward, proving where she was standing, and she didn't see anything unusual.

Song Qingxiao's spiritual power is not deep, and she uses it frequently after entering the island, but she rarely has the opportunity to recuperate.

In order to prevent No. 3 from going out of her control, she also followed suit, preparing to shorten the distance between the two.

As soon as she moved, Seven's face suddenly changed, and he looked suspicious, and finally reached out and made a gesture to stop her.

"Are you crazy?"

Seven's eyes widened, and he lowered his voice before drank, a look of disbelief.

She didn't mean to stop Song Qingxiao from dying, if there was really a mutated creature, Song Qingxiao would take the initiative to seek death, and No. 7 was afraid that it would be too late to rejoice.

But she was worried that Song Qingxiao acted rashly like this, I am afraid that there was another conspiracy, and No. 7 was afraid that she would have some ghost idea, and she would harm herself at that time, after all, No. 3 was invisible, like a shrunken turtle and couldn't hide, and the only people on the surface were herself and her.

Seven's voice was low, but it was still very clear in such a quiet place, which was almost eerie.

Three, who was walking forward, also paused, and his consciousness stopped, probably listening to the conversation between the two.

"What are you afraid of?"

Song Qingxiao squinted his eyes and looked at No. 7, "There is something, you can only see it clearly." When she said this, she said meaningfully: "I'm afraid the mission time is running out." ”

The meaning of her words, No. 7 understood at once.

When Mr. Zhou arrived on the island, he claimed that he had to rush to the laboratory to make a phone call through a satellite connection to ask for help.

But in fact, several people entered here in advance, only to find that except for some experimental equipment, they did not find any tools that could communicate with the outside world.

Not to mention that the computers and other things that may have installed the data have been emptied, and even some power lines have been completely paralyzed and unusable.

Entering the research room and sending a distress message was just a hoax, and he should have left something else behind.

Other times he may be able to endure it, but after he is injured and loses important potions, it is inevitable that he will send out a distress signal.

In this way, as soon as Mr. Zhou's foreign aid arrives, it will be difficult for the trialists to be tolerated, and they will be wiped out, which also means that the time for this mission has come.

As soon as Song Qing finished speaking, No. 7 was stunned for a moment, and No. 3 also began to continue walking.

Everyone needs to complete this mission and leave this place before the time is up!

When Song Qingxiao followed No. 3 again, No. 7 didn't make a sound, and after she walked five or six meters away, No. 7 gritted her teeth and followed.

After walking twenty or thirty meters, No. 3 in front of him did not stop, and the damp and unpleasant smell in the air became more and more obvious, not only Song Qingxiao and No. 7, but even No. 3, who was walking in front and stealth, was obviously much more cautious.

A few minutes later, the sound of the 'thump' was heard again, this time not faintly heard before, but much clearer and more frequent than before.

The layout of the laboratory has also changed dramatically, and there is a far longer staircase in front of it, and the bottom of the staircase is no longer a laboratory blocked by glass, but a passage that looks like a long tunnel.

Light strips were laid on both sides of the underground in the tunnel to illuminate the tunnel, and Song Qingxiao stood on the top of the stairs, unable to see the length of the tunnel or where the tunnel was going.

A few people seem to be about to set foot in an unknown territory, and once they enter, they will gamble on life and death!