The puzzle found on the fifth floor is very mysterious, with only a fat V, a thin V, and a small horizontal line, of course, it may not be viewed from this angle, and there is no other mark on the paper indicating the direction of viewing.

Zhou Yu is burning the desk and blocking the door, this set is already familiar with it, but I don't know if Nie Sha will wet the bed after this dream.

"This is the rank of the United States Army?" After the fire door was ready, he carried a chair in one hand, ready to add firewood at any time.

Nie Sha shook her head: "It's indeed a bit like the corporal rank, but the two inverted V angles of the corporal rank are the same, and the sides are curved, and there is no horizontal line on it, so the person who comes up with the puzzle won't be so messy." ”

Zhou Yu didn't have to worry about ghosts, he had room to think, thought about it and asked: "Will V represent the five of the Roman numerals, two Vs plus one, that is, eleven, and then add the number and ten, so the answer is 2?" ”

"It's possible, but it shouldn't be that simple." Nie Sha thought for a moment and said, "If you really want to make such a puzzle, why do you want to write the two V's differently?" I think the point of this puzzle is the angle of the two Vs. ”

"Indeed, this is the fifth puzzle." Zhou Yu nodded slowly, and said to himself: "Turn V upside down and be Thorn Erjun, you should summon Scattered Immortals to get a silver shot." ”

Niesha took out her notebook and drew on it, turning the puzzle around and studying it from a different angle.

After burning a few more chairs, Zhou Yu began to practice his obsession again, no longer caring about the ground, directly affecting those ghosts, wanting to prolong their pause.

These ghosts are the nightmares in Nie Sha's dreams, not much different from some nightmares in Moon City, but they just make Nie Sha the only target, if they can skillfully make them pause, if the nightmare of Moon City will also be affected, then it will be much easier to explore Moon City with Ah Ba in the future.

"Yes 6." Niesha finally put down her pen and smiled with satisfaction on her face.

"Six? How is it calculated? Zhou Yu put two more tables on the fire and walked to Nie Sha's side.

"It's an inverted pentagram." Nie Sha handed a note to Zhou Yu.

There is a five-pointed star drawn on the sticky note, and the five-pointed star is divided into three parts by two vertical lines, and if you look at it upside down, the middle one is a fat V and a thin V.

Niesha continued to explain: "The inverted pentagram is the sign of Satan, and Satan's code name is 666, and the inverted pentagram takes one-third, and the code name also takes one-third, which is the number 6. ”

"What about the horizontal line? Why didn't it work? Zhou Yu glanced at the paper with the puzzle drawn.

"The horizontal line is used to mark the positive and negative, in the nine-ball, the number 6 and the number 9 are difficult to distinguish, so a small horizontal line will be drawn below, and the function of this horizontal line is to indicate the inverted pentagram." After Nie Sha finished explaining, she glanced outside with some concern.

The fifth puzzle is solved, then the fifth ghost should also appear.

As expected, the ghost appeared, and it was the girl with a ponytail on the rooftop, and her appearance was different from other ghosts, floating directly through the wall.

Zhou Yu was stunned, hurriedly rushed to the door, pulled out a burning wooden stick from the side of the fire, and waved it at the girl, while concentrating, wanting to use obsession to make her pause.

Nie Sha was used to it, and immediately retreated behind Zhou Yu.

The ponytail was affected by Zhou Yu, looked at him, floated back, avoided the fire stick, suddenly opened its mouth, and let out a sharp and piercing cry, its mouth opened wide, its eyes turned black when it screamed, and its complexion was extremely pale.

Zhou Yu and Nie Sha covered their ears at the same time, only to feel as if several electric drills had drilled into their cranial cavity at the same time, their ears were numb, the sky was spinning, they couldn't keep their balance at all, they fell to the ground, struggling desperately but couldn't stand up.

With a wave of his hand in his ponytail, Zhou Yu flew out, as if he had been hit by a speeding car, and flew out of the classroom, hitting the wall of the corridor and falling back to the ground, his head suddenly sobered up.

"Not good." He sat on the ground and looked up at the ghosts surrounding him.

The bones in his body seemed to be falling apart, and it was his right shoulder, which had not yet healed, that hit the wall, and it hurt so much that he couldn't lift it at all.

Ma Tao's meter ruler waved down again.

With a sound of "dang", Zhou Yu raised his left arm to block it, and the huge force directly lifted him out, rolled on the ground a few times, and slid to the staircase.

Standing up tremblingly, Zhou Yu closed his eyes, turned on [Blind], moved into the classroom in front of him, and then moved out, returned to the door of the classroom where they were just now, kicked the fire at the door hard, and rushed back to the classroom.

The flames flew into the classroom like a meteor shower, smashing their heads and faces into the ponytail, Nie Sha had already been lifted up by its neck through the air, and Zhou Yu could only use this trick to save Nie Sha.

At the same time, he was hit by several burning sticks and wood chips, and the ponytail disappeared in place with a scream, and Nie Sha also fell back, holding her neck and coughing desperately.

She was also hit by the burning stick, but fortunately she didn't catch up, but her hair was burned and charred a lot.

Zhou Yu ran over, carried her on his shoulder, smashed into the fire in the back door, rushed out, and ran towards the stairs.

Nesha was still coughing desperately.

At the corner of the staircase, a hazy transparent figure gradually condensed into a ponytail, blocking their path.

Zhou Yu held a picked up fire stick in his hand, which was very hot, but he didn't dare to let go, nor did he dare to stop, waving it and continuing to rush.

The ponytail was forced into a corner, and when he opened his mouth to scream again, Zhou Yu immediately poked the fire stick and forced it into the wall, so as not to carry Nie Sha down the stairs.

All of a sudden, the situation became tense.

The speed of the ponytail fluttering is not fast, but the fact that it can pass through the wall is a headache, rushing into a classroom, Zhou Yu immediately moved a chair, lit it and blocked the door, and asked Nie Sha for two sticky notes, chewed it, and plugged his ears.

Niesha also learned to do it, and immediately began to look for the puzzle after her ears were plugged, her neck was burning with pain, but it was only the last number, and she had to keep going no matter what.

After the fire broke out, Zhou Yu changed two table legs as weapons, and the ponytail also came in, and was forced back by the fire stick in Zhou Yu's hand, and began to scream again, but after the ears were blocked, although Zhou Yu and Nie Sha's heads still hurt, their actions were not greatly affected.

Six classrooms were searched and burned, and when they couldn't find the puzzles, they moved to the teacher's office, and again, and finally had to go into the bathroom.

The bathroom was narrow and easy to find, but there was nothing to ignite, so Zhou Yu had to drag a table to block the door.

The shoulder still hurts badly, the ponytail is still trying to attack, and now it is no longer a matter of protecting Nie Sha, Zhou Yu still has to think about saving his life.

The biggest obsession of the creature is his own life, and when he needs to save his life, the obsession is very strong, in the small bathroom, he struggles to prevent the ponytail from breaking in, and at the same time, he also realizes that the ponytail's pauses are becoming more and more frequent, and sometimes the screams will even be directly interrupted.

"There it is!" Nie Sha screamed, but Zhou Yu didn't hear it, so he had to pat him on the shoulder.

Zhou Yu turned his head and saw Nie Sha holding a piece of paper shaking towards him, the paper was painted with a row of patterns, the first was a regular triangle, the second was a regular pentagon, the third was a regular octagon, the fourth was a regular fifteen-sided shape, the fifth was a regular nine-sided shape, the sixth was a regular octagon, the seventh was a square, the eighth was a regular nineteen-sided shape, and the ninth was a regular fifteen-sided shape.

If you put it into a number, it would be: "3-5-8-15-9-8-4-19-15".

The puzzle on the sixth floor is the hardest of all the puzzles.

"I'll run, you can solve it!" Zhou Yu yelled at Nie Sha, picked her up and ran out, rushing back to the third floor in one go.

The tables and chairs on the three floors below had not been burned, and there were still a lot of resources for them to burn, so Zhou Yu began to set up a defensive line, making a large circle of fire, surrounding the two of them in the middle, so that even the ponytail could not come in.

"How do you solve this? None of the sides of these shapes have more than 26 digits, converted into numbers, and then converted into English letters? Zhou Yu dug out the earbuds and asked Nie Sha.

Nie Sha nodded, and while counting, she wrote a row of weird words, Zhou Yu couldn't understand it, Nie Sha didn't need to understand it, just like Grimm could read the wordless heavenly book, dreams existed in their brains, and what they saw only existed in their brains.

Zhou Yu did the math himself, and the English letter is: "CEHOIHDSO"

"What do you mean, it doesn't make any sense." He frowned, it wasn't a word at all.

Nisha bit the shaft of her pen and fell into deep thought.

The circle around is not big, the fire is very strong, and both of them feel that their skin is hot, but now they can't take care of it so much, and at the moment of crisis, Nie Sha's puzzle-solving ability seems to have been upgraded again.

"It's Caesar Square!" She suddenly screamed excitedly, and buried her head in writing nine incomprehensible letters on the notepad, this time not in a row, but in a group of three, written into a nine-square grid.

Zhou Yu also wrote in his heart, and what he wrote looked like this:

CEH

OIH

DSO

It dawned on him that connecting the letters vertically was the answer.

“CODE-IS-HHO”

"What is HHO?" Zhou Yu was stunned for a moment.

"Two hydrogen atoms, one oxygen atom." Nie Sha replied immediately.

"Water?" Zhou Yu still didn't understand: "The answer is water, is the number of strokes?" That should be 4. ”

"The answer is 3." Nesha stood up.

"Why is water three?" Zhou Yu still didn't understand.

"On Wednesday, the number of strokes is also a possibility, but we haven't used this kind of puzzle for a long time, and we can basically rule it out." Nie Sha said confidently.

204863。

The sixth puzzle was solved, and the sixth ghost appeared, and it appeared directly in the fire ring, and it was the dwarf who hugged Nie Sha.

Nie Sha screamed in fright and was thrown to the ground, and Zhou Yu stabbed into the dwarf's body with a fire stick.

The dwarf disappeared from Nie Sha, appeared outside the fire ring, and then disappeared, and reappeared next to Zhou Yu.

"Teleport?" Zhou Yu had already pulled up Nie Sha, hugged her and knocked her out of the ring of fire, got up and ran.

If you come to a person who can pass through the wall, you have to come to one who can teleport, and now even the fire defense is ineffective.

Fortunately, the puzzle had been solved, and Zhou Yu rushed downstairs with Nie Sha on his back, brandishing a fire stick to drive away the dwarf who had teleported to his side, and came to the gate of the church building.

Before he could put Nie Sha down, the dwarf had already moved in front of Zhou Yu and stretched out his hand to stab Zhou Yu in the chest.

Suddenly, there is no way to dodge, the power of these ghosts is extremely great, and the dwarf should be able to directly pierce Zhou Yu and Nie Sha.

At the moment when the dwarf's fingertips touched Zhou Yu's chest, the dwarf's movements stopped.

This time there was a pause of more than a second, and Zhou Yu immediately stabbed the fire stick into the body of the dwarf, and reached out to dial the password.

204863, when dialing out this number, Zhou Yu heard a soft "click" sound from the door, and immediately pushed the door open, and jumped out with Nie Sha on his back.

"It's ......" As he fell to the ground, his eyes were pierced by the light, and at the same time he felt the person on his back disappear.

It was raining heavily outside, but instead of getting wet, he jumped into a brightly lit room.

Nie Sha lay on the desk, groaned softly, raised her head to look at the clock on the wall, and said to herself, "I'm asleep again, it's really ......"

There was a picture on her desk of the people on the rooftop, everyone smiling brightly.

And on the wall, there is also a note pasted on it, which reads: "Come on for the college entrance examination!" ”

"Oh, Black June, no wonder I have such nightmares." Zhou Yu suddenly realized and walked into the triangular gap in the wall.