Leng Xingyun concocted it in the same way, and used a sharp dagger to disembowel each of the creatures that were led ashore to see if there was Zhang Fan.

And Qian Lang hid behind Leng Xingyun and kept throwing stones into the river.

After a while, Qian Lang scolded: "Damn! There are so many things like this, when will it be finished? In case Yifan wasn't eaten by them, then we didn't play this game for nothing? ”

"Even if it's played for nothing, at least it proves that Zhang Fan is not dead." Leng Xingyun said while quickly cutting open the belly of the creature, "Even if there are a hundred possibilities, you can't let go of one of them. It's still the same sentence, you have to see people in life, and you have to see corpses in death! ”

"That's right! If you live to see people, you have to see corpses when you die! This is an account of his conscience and of ourselves, at least! Qian Lang held this belief, as if he had been beaten with chicken blood, he had inexhaustible strength, desperately picking up stones and throwing them out.

I don't know how long it took, when the riverbank, which was originally not large, was already filled with stinking corpses, and even the foothold was almost gone, Qian Lang suddenly shouted: "Stop!" ”

Leng Xingyun didn't look back, and asked while dissecting the creature, "Why did you shout to stop?" ”

"You say, if you live to see people and die, you must see corpses, and even if there are a hundred possibilities, you can't let go of one of them. I agree with these two sentences very much and are very convinced!

But if you think about it, is it possible that we care about it and ignore some of the clues left by Zhang Fan? So, maybe Zhang Fan is still alive, but maybe somewhere else? Qian Lang guessed.

Leng Xingyun thought about it, stopped his movements and put away the dagger, and said lightly: "I think so too, he may just be on the wrong side of the road." ”

Qian Lang smiled and muttered softly: "Obviously, I guessed it first and then proposed it, you really know how to be a serious afterthought!" ”

Leng Xingyun heard it, but he didn't say anything, because it was indeed as Qian Lang said, if it weren't for Qian Lang's reminder, he would really ignore other issues because he cared about it.

Now calm down and think about it carefully, Zhang Fan has been here, and tried to chop the 'river demon' with a switchblade, and found that the knife could not hurt the 'river demon' at all. Zhang Fan, who was frightened, dropped the knife and ran back to the cave.

But since they didn't meet Zhang Fan in the cave, it means that Zhang Fan has gone the wrong way.

Leng Xingyun thinks that there is nothing wrong with such speculation, but the problem is that no matter how frightened and panicked he is, he should return the same way according to the mark he drew himself, how can he take a fork in the road?

Unless...... On the way back, he encountered something else or danger that forced him to abandon his original path and take another path?

Thinking of this, Leng Xingyun waved his hand at Qian Lang, and walked into the cave to check the marks with a regular sense of distance along the way.

While walking along the mark, they turned on their flashlights to carefully observe whether there were any other clues left by Zhang Fan.

However, it didn't.

But when they were halfway there, they both noticed that the hole seemed to be a little strange, but what kind of strange it was, the two of them couldn't say why they came for the time being. Just stay there and look back and forth with the light of the flashlight.

Suddenly, Leng Xingyun seemed to think of something, standing in the middle of the cave and looking ahead, and then at the back.

Then, standing on the left side of the cave against the wall, he looked in front of him and then behind him.

Finally, he stood on the right side against the wall of the cave and looked back and forth again.

After Leng Xingyun identified the root of the problem, he gasped in shock: "Visual misalignment!" ”

"Visual misalignment?" Qian Lang didn't find out what the problem was, so he naturally couldn't understand it, and asked, "What do you mean?" ”

"If you're like me, compare the left, the middle and the right before and after, and you'll find out." Cold Nebula prompted.

After Qian Lang did so, he found that looking forward and backward along Zhang Fan's mark against the cave wall was different from standing in the middle and looking forward and backward.

Because, looking against the wall of the cave, this passage is straight. However, if you look forward and backward in the middle, you will see that the passage is not straight, but has a fork. However, when you look against the cave wall, you can't see the fork in the road.

The reason is that the fork in the road is half-covered and half-exposed by the severely uneven walls of the cave with different widths and narrowness.

So it is speculated that after Zhang Fan entered the cave, because he was very careful and wanted to draw marks, he never walked in the middle, but drew marks along the wall of the cave.

As a result, he didn't notice the fork at all, because of the visual dislocation, he always thought it was going straight, but in fact he entered the fork.

If that's all there is to it, it's not very worrying, but what is really worrying is that there is not just one visual misalignment, but it is very likely that there will be several visual misalignments.

In other words, Zhang Fan is very likely to enter several forks before reaching the underground dark river. However, Zhang Fan, who was frightened and fled, most likely did not stick to the cave wall anymore, but ran to the middle.

But his vision in the middle and his panicked desire to flee caused him to ignore the marks on the cave wall, which misled him and ran into other unmarked forks. When you find out and then want to return, it's difficult.

"This speculation sounds very reasonable...... Qian Lang touched his chin and thought: "But based on this speculation alone, how can it be proved that Zhang Fan really went off the road and lost his way and couldn't return?" ”

"You'll find out if you try it." Leng Xingyun said casually.

Qian Lang thought for a while: "Okay, I'll try it, but ...... I won't be like Zhang Fan, I will run away, right? ”

"You run, I'll stop when it's almost over." Immediately, Leng Xingyun reminded: "When you shout to stop, you must not run any further." ”

"Understood!" Qian Lang was ready, imagining what it would be like to run desperately when he was frightened, and then he ran away.

After more than ten seconds, "Stop! ”

Qian Lang heard the faint shout of stop, hurriedly stopped his steps, and looked back by the light of the flashlight.

Although Qian Lang had already been mentally prepared, he couldn't help but gasp when he really found that the cave he was in was no longer the cave he was in, and there were several forks in this passage.

"Cold Nebula! Where are you? Qian Lang shouted nervously: "Come to me quickly!" I don't dare to move a step now, for fear that I will get lost if I take a fork in the road! ”

Leng Xingyun snorted and ran to Qian Lang, "Fortunately, if you say a few more words, I can tell your specific location." Otherwise, if you don't get found, you're really going to get lost. ”

"How so?" Qian Lang asked.

Leng Xingyun didn't answer and asked, "When I shouted to stop, what kind of sound did you hear from your ears?" ”

Qian Lang thought about it for a moment and replied, "The voice is very soft, and there is a vague feeling of etherealism. ”

"But I heard your voice, not only faintly, but also very resonantly, from all directions, one after another. So, it's good that you said a few more words, and it's good that my hearing is extraordinary. ”