The arm was raised, and he looked puzzled, he really didn't know what the item was at the moment, but it would be nice if he could guess the result anyway.

Fingers stretched out in the water, the slightest coolness suddenly hit, at this time Ouyang Lian smiled calmly, it seems that this is really not much different from what he imagined, and as for the convex groove in it, it is just a trick.

The arm drove straight in, and Ouyang Lian groped for another convex groove under this curtain hole, but this convex groove was not easy to see because of the 3D screen and the hazy flow of water.

At this time, Ouyang Lian grabbed a treasure chest in the recess of the mechanism, and he slowly took it out of the cave along the treasure chest, and as for the cave, there were no other items.

"That's it......"

Ouyang Lian looked intently at the black treasure chest in his hand, it seemed that the difference in color made it even more difficult to find.

The chest has a skeleton on it, and there are red paint renderings on the four corners of the chest, which looks like a gift from the Grim Reaper, but it is very terrifying, and there is no mood to explore the treasure.

At this time, Ouyang Lian was holding the treasure chest, and he was about to open it, but because the treasure chest was locked, Ouyang Lian did not open it at this time, but still closed it tightly.

Mu Lingxi and Ouyang Qianlong, who were on the other side, couldn't help but look a little worried when they saw Ouyang Lian's figure, because leaving them behind and being helpless in another place, anyone would lose their sense of security and be unable to feel at ease.

Ouyang Lian glanced at the treasure chest, and finally decided to return to Mu Lingxi and Ouyang Qianlong's side first, after all, he couldn't let them wait too long, because his other preparations hadn't started yet.

"Whoop......"

Ouyang Lian returned to the eyes of the two of them after a while, and at this time, he was out of breath and gradually calmed down, he didn't want to affect the mood of the two of them.

"Lian, what is this?"

At this time, Mu Lingxi's eyes sharpened and saw the black treasure chest in Ouyang Lian's hand, and she said in ignorance at this moment, of course, in fact, it was not only Mu Lingxi who found the black treasure chest in Ouyang Lian's hand, in fact, Ouyang Qianlong also saw it, but the words were one step later.

"Oh? I actually found this from the mechanism on the rocky bridge, and I thought something was not quite right, until I surveyed it, and it turned out to be exactly what I had suspected. ”

Ouyang Lian said lightly in a low voice, and his big hand then placed the black treasure chest on the palm of his hand, and slowly raised it for Mu Lingxi and Ouyang Qianlong to take a look.

"Well, this should be some kind of clue...... Actually, I don't think this place is just for us to walk through, and it seems that there may be a bigger conspiracy. ”

Ouyang Qianlong kept speaking in a low voice at this time, and his eyes looked at the gift box and couldn't move it anymore, he was really curious.

"Brother, let's see what's inside. Ouyang Qianlong continued to speak, but at this time, an embarrassed expression appeared on Ouyang Lian's face for some reason.

"To be honest, the box is locked, but I don't know how to open it yet. ”

Ouyang Lian sighed, looking at the message on the gift box from afar, there was actually nothing, it was just a simple box, but one thing that was interesting was that there was a small number in the center of the opening of the gift box - 9.

Ouyang Qianlong took the gift box and tried it a little by himself, but sure enough, the box was not opened, but Ouyang Qianlong's little hands were a little cherry red.

"Forget Qianlong, don't bother with it, I think there should be other clues that haven't been unearthed. ”

Ouyang Lian's words did not make Ouyang Qianlong die, at this time, all she was thinking about was how to leave this ghost place as soon as possible, she really didn't want to stay here for a minute.

After the silence, Mu Lingxi, who was standing on the side, suddenly spoke, and the shocking voice of her words came into the ears of the two of them, and they felt a trace of incredulity.

"It's better to ...... Let me try it, I think I should know how to open this box.

Mu Lingxi looked at Ouyang Qianlong, her blazing eyes stared at the latter, it seemed that Mu Lingxi had some thoughts in her heart.

"Hmm...... Good. ”

Holding it in his hand, Mu Lingxi looked at all the black skull gift boxes in his hand blankly at this time, which seemed to emit a black aura from the bottom of his heart, and after experiencing the multiple illusions just now, it was really difficult to distinguish what reality was.

Just after fiddling with it in his hand, he only heard a click, and Mu Lingxi actually opened the black gift box in his hand at this moment, but as for what was in the gift box, it was actually just a blank piece of paper.

"Ling, Lingxi, how did you open it?

Ouyang Qianlong was amazed and admired Mu Lingxi, but Mu Lingxi's face at this time was not funny.

"Sister Qianlong, don't laugh at me, I just casually turned the number 9 on it, this should be because of the clicking sound after the turn, which unlocks the internal connected mechanism, so this box will be opened, there is nothing powerful at all. ”

Mu Lingxi said this to Ouyang Qianlong, but in fact, she suddenly recalled the stalk that she and Liu Yan often heard the jokes of the boys around her when they were eating together in the restaurant, but she didn't expect it to come in handy at this time.

"6...... flipped. ”

Ouyang Lian said speechlessly with a dark face, no matter how much he guessed, he couldn't come up with the idea that such a brainy designer would use such a joke-like stalk to solve the problem, and there was no technical content at all.

Ouyang Lian covered his cheeks with his big hands, covering his eyes, for some reason, he always felt as if he had no face to see people, but Mu Lingxi's face actually still had a happy expression after being praised.

"Oh, by the way, I just forgot to think, why is there a blank piece of paper in this gift box? This doesn't seem to have any clues, right?"

Mu Lingxi opened his mouth suspiciously, but in fact, when Ouyang Lian saw that it was a blank piece of paper, he knew what to do next, but since he was accompanying these two people, he couldn't let himself be in the limelight.

"yes, it's really weird, what do you think? Qianlong ......"

Ouyang Lian smiled and kept muttering, and shifted his gaze to Ouyang Qianlong's body, his eyes staring at her as if he was expecting something.

"I ......"

At this time, Ouyang Qianlong's throat choked, as if she was surrounded by invisible pressure at this moment, but she didn't know what to do.

"It's okay, I'm sure you know the result. Ouyang Lian's words at this time were actually said in his heart, because according to Ouyang Qianlong's ability, these simple things that were the easiest to find should be the easiest to be discovered by her discerning eyes.

Ouyang Qianlong took the gift box and looked at the white paper, the white paper on it was transparent, no matter how it shone against the dim light, he couldn't see the lines or fonts on it, it was just a blank.

"Huh? Wait a minute. ”

After thinking for a moment, Ouyang Qianlong's eyes suddenly widened at this time.

As the latter's footsteps stepped out one after another, Ouyang Qianlong ran under the sink on the rock bridge just now in the blink of an eye, and at this moment she took out a blank piece of paper, and then spread the paper horizontally on it.

"Yes, there is!"

Ouyang Qianlong shouted happily, he couldn't believe that the moment the paper touched the water, cracks appeared one after another, and these cracks were glued one after another, forming a pattern that looked like a labyrinth.

"This should be the maze we are going to get out of, and it looks like we can finally get out. ”

Ouyang Qianlong smiled lightly, she didn't want to leave here all the time.

At this time, Ouyang Qianlong took out the treasure box, and looked at the treasure box to pour half of the water, and then spread the paper horizontally in the treasure box, so that he could read the map all the time.

Coming to Ouyang Lian and Mu Lingxi's side, Ouyang Qianlong was holding a box with a maze pattern, as if she was waiting for someone's praise, and she really didn't expect that she had really done it just now.

"Sister Qianlong, you are really amazing, I didn't even think of it just now. ”

Mu Lingxi looked at the map in the water, and now he really didn't see or hear about it, but Ouyang Lian knew the principle.

The reason is that the main component of the blue alum solution is anhydrous copper sulfate is blue, and after air drying, the anhydrous copper sulfate at this time will form colorless, so when the colorless anhydrous copper sulfate encounters water again, the original smeared text can be displayed.

Ouyang Lian knew that in fact, Mu Lingxi herself knew this principle, but the reason why she didn't say this was probably because she didn't want to ruin Ouyang Qianlong's mood, after all, Mu Lingxi's grades when she enrolled in Jiawen University were not as reluctant as she imagined.

The three of them stopped in place, and Ouyang Qianlong gave the figure to Ouyang Lian to watch, because she knew that Ouyang Lian's memory was excellent, and the so-called unforgettable she had personally witnessed Ouyang Lian's strength.

"Give me a moment, I'll do a rough math of the scale. ”

Ouyang Lian said lightly, he couldn't believe that Ouyang Lian wanted to get out of this maze with his memory, without the help of any foreign blessings, it was really terrifying.

Just five minutes later, Ouyang Lian gradually opened his eyes at this time, and said in his mouth:

"Well, almost, let's go, get out of this labyrinth!"