It was a strange sound.

The frequency range of the sound is high, and there is a sense of unreality like her [Deep Sea Submersion]. Even though she wasn't sure if she had really heard it, or if it was just a hallucination?

Shen Mingfei shook his head blankly: "What sound, no?" ”

Qin Feng and Clolo also shook their heads.

Su Xi listened attentively again, and the sound seemed to come from the depths of the ventilation duct, intermittently and far away. They're all going to go through the ventilation duct anyway, so she decides to go check it out first, and crawls into the duct first.

The pipe was narrow enough for only one person to pass through, and she climbed a section until she came to a fork in the road.

After careful discernment, the sound seemed to come from a fork in the road on the left.

She asked Clolow, "Do you know where the left leads?" ”

When Clolo was checking the map in the lounge before, she also stood aside and looked at it a few times, but after all, she was a few steps away, and before she could finish it, she was interrupted by the sound of an alarm. Later, when the battle was over, I wanted to look again when I was resting, and found that the map on the wall had been destroyed by the laser.

Now one can only count on Krollo to see it all and remember.

Clolow lived up to expectations: "You wait for me to calibrate the next direction." With that, close your eyes.

Shen Mingfei, who was following him, was very curious: "Krollo, aren't you going to calibrate the map, why are you closing your eyes?" ”

Crollo said: "Ah, I have the emergency escape map on the wall in my mind, just to compare it with my mission map and the dynamic route we just walked, to find the south, south, west, and north...... I'm a little dizzy in 3D, and the sense of direction in 3D is a bit poor. ”

Everyone: "??? ”

Isn't it, God Halo 3D, Krollo, do you really think this game is a game to play?!

It doesn't seem to be a problem......

But I always feel that nothing is right.

After a few minutes, Clolo opened his eyes: "We are now in the third sector laboratory, if you go further to the left front, you will enter the first sector laboratory." I don't have a diagram of the interior of the Zone 1 lab here. ”

"Then don't go," Shen Mingfei said, "It's dangerous, let's collect some supplies in District 3." ”

"Whew...... Roar...... "Suddenly there was a monster's wail from the bottom of the passage where they were.

Shen Mingfei hurriedly silenced, looked down from the vent, and saw that at the end of the aisle below, two or three distorted monsters slowly wandered out, one of which was half of his face rotten, and the remaining half of his face was full of eyes; The whole back of the head was raised high, and the sharp scales of the fish pierced the entire back like the spikes of a saber-toothed tiger; There is also a distorted arm, which has become a webbed shape that is more than a man wide and muscular......

Seeing that Shen Mingfei's face turned blue.

A few people crouched on the ventilation ducts, quietly waiting for them to pass by.

When they were far away, Su Xi said, "It's not safe anywhere, go to District 1, I have a hidden mission that may be in Area 1." ”

"Is that what you just heard?" Crollo was the quickest to react, "No wonder the rest of us can't hear it." Okay, okay, I'll see what a hidden mission looks like. But Su Xi, how did you get the hidden mission? Why haven't I ever received it? ”

Su Xi also suspected that the illusory voice she heard had something to do with the hidden mission.

However, she didn't want to say exactly what her hidden quest was about, so she summed up her experience of receiving the hidden quest twice, telling him: "Possibly, when you take the initiative to do something that most players won't do, you can trigger it." ”

The first time it was triggered was when she took the initiative to close the corpse's eyes and promise revenge after she had collected the corpse's supplies;

The second trigger is when she was dealing with the gatekeeper and stole a bunch of keys by the way.

These are things that few players do.