In a short, narrow ventilation duct -

Lloyd and Kathu crouched slowly, the ventilation pipe was small and long, and there was a faint glow in the tunnel due to the faint glow of the crystal skull behind Kathu.

But the perceptive Lloyd had spotted something unusual in the pipes - it just shouldn't be so clean!

Lloyd rubbed his hand against the inner wall of the ventilation duct, and sure enough, there was not much dust.

"Lloyd, what are you doing?" Seeing Lloyd squatting and walking, while paddling the inner wall of the pipe with his hand, Katu asked curiously.

"This kind of pipe shouldn't be cleaned up from time to time, and the cleanliness of this is a bit unreasonable." Lloyd withdrew his hand and continued to walk through the small pipe.

"That's right!" Katu slapped the inner wall of the pipe, and only the handprints could be vaguely seen, and the inside of the pipe was indeed not dirty.

"And what do you mean?" Catou asked as he followed behind Lloyd, as he thought it was just an ordinary ventilation tube.

"There are gas outlets in this pipe, so you can see that the liquid will not flow through, otherwise the liquid will flow out of those gas outlets, and it will also leave traces in the pipe." Lloyd grabbed the famous knife of the village rain and slashed the inner wall of the pipe, but the inner wall of the pipe was unscathed, and there were no scratches at all.

Lloyd frowned, turned to Kathu and said, "We need to find a suitable outlet and get out of this pipe quickly!" ”

When Kathu passed by the inner wall of the pipe that Lloyd had just cut with a knife, he touched the position with his hand, and if it weren't for Kathu's visual knowledge of where Lloyd's position was, he would not be able to touch it at all, there was no dent at all, and there was not even a peel.

"The quality of the pipes is good." Katu couldn't feel any scratches, and said in admiration, thinking that this black-hearted boss actually did so good even the quality of a pipe.

Lloyd let out a wry laugh.

"What's wrong?" Kathu was behind Lloyd, and Lloyd's expression was invisible.

Lloyd did not stop, and said anxiously as he crouched forward: "According to these signs, it means that this pipe is a pure ventilation pipe, and when the gas passes through, it is accompanied by a very fast speed, and the fast-flowing gas can wash away and carry away the dust." ”

In the dim light, Kathu glanced left and right at the inner wall of the ventilation duct, which was relatively clean, but there were very slight signs of corrosion, not rust.

"Lloyd......" Kathu reminded behind Lloyd.

"Looks like you're good at observing. That's right, this pipe is supposed to be the one that transports the disgusting green liquid that has vaporized. Lloyd's voice was accompanied by a feeling of anxiety, because the longer you stay in this pipe, the more dangerous it becomes.

"That thing should have a strong corrosive effect, if it turns into gas and we inhale it into the lungs...... The consequences are unimaginable! Kathu's eyes widened in surprise as he thought back to the sharp pain in his left foot, all related to these toxins.

Kathu placed the glowing crystal skull on his chest and used it as a lamp.

"Lloyd, if the gas passes through like this, then there must be one end of the tunnel where the gas is coming from the source and the other at the end of the gas. Are we heading to the source or the end? Catou clung to Lloyd, allowing the crystal skull to emit a faint glow that illuminated the front.

Lloyd paused, paused, turned around, raised an eyebrow at Kathu, and smiled evilly.

When Katu saw Lloyd's expression, the admiration in his heart had already begun to arise, because every time Lloyd's expression appeared, it already meant that he had an idea for a long time, and when did he start to have an idea? This insight made Catou sigh with emotion.

"Kathu, take a closer look at the sparse dust on the inner wall of this pipe. If you look at their direction, is it like a stream of water? Lloyd said, gesturing at the shallow layer of dust on the inner wall of the passage.

Kathu lifted the crystal skull up, carefully looked at the lines shown by the dust on the inner wall, and sure enough, he could see the flow direction! Catou shook his head and sighed, already admiring Lloyd.

Lloyd specifically stopped to explain to Kathu, and also had an idea. Because he hopes that Catou can also gradually develop insight, and maybe a small discovery in the future will change everyone's fate.

"Then let me guess, we're going to the exit of the poison gas, because you want to know what the gas is going to do when it goes out?" Kathu lifted the wrapped crystal skull, and the faint light illuminated the faces of the two men, and Kathu raised an eyebrow.

Lloyd smiled, thinking that Kathu was indeed very talented, although his limbs were developed, but his brain was not simple.

Lloyd continued to lead the way and squatted forward, and Kathu followed, thinking to himself, "What is the origin of this man in front of you?" Why is it so good and so insightful. He must have seen the direction and made a decision as soon as he entered the pipe. ”

As he thought, Kathu felt that the crystal skull wrapped in white cloth was too tight, and the light was much more obscured, so Kathu unraveled a few layers, and the pipe was much brighter.

Lloyd felt that the famous knife in his hand was exuding a murderous aura, and there was actually a figure in front of him.

Lloyd realized something was wrong! The hypnotic anchor bomb set up by the evil hypnotist Haiwei began to toss again.

"If you don't come early, you won't come late! Come at this time! Lloyd scolded himself, so he reluctantly put the knife aside, sat down, closed his eyes, and began to enter a state of self-hypnosis.

When Catou was on the ground, he had seen Lloyd feel the magnetic field in this way, and he thought that Lloyd was going to feel something again, so he also stopped, and still shone Lloyd with a glowing crystal skull on the side.

After Lloyd closed his eyes, the afterimages of Yixue and Qiu Min kept appearing in his mind, which made Lloyd extremely puzzled, Lloyd tried to talk to his subconscious, but he didn't know why his heart was flustered at this time, he felt a burst of coldness on his arms and calves, and his stomach was slightly uncomfortable, and cold sweat dripped from Lloyd's head.

"I wondered why when I felt a magnetic field on the ground, how could there be such a strong magnetic field that made me see so many things! It turned out that there was a stronger magnetic field affecting my heart rate and brain waves. How so!? Lloyd was unable to connect with his subconscious at this time, and a pained expression appeared on his face.

"Lloyd!? Are you okay? Kathu held the crystal skull closer and pressed it next to Lloyd, asking with concern......