In this boring world, a kind of nameless grass will be a sacred object that combines multiple functions. In Luo Xiurong's context, he would say that when the salan grass burns, it may cause a fluctuation at the same frequency as the receiving place also burns the salan grass, thus completing a docking.

"But there are many soldiers in my military camp who smoke salan grass smoke," the third prince immediately threw away his cigarette, as if the cigarette butt would turn into a devil at any time.

"Probably not," said Roland, "the salan smoke that can communicate is specially crafted, or has the same charm applied. In the ghostly world, they are very likely to communicate in real-time in this way, and even with the Black Cliffs, the mines, and the Skull Pagoda, we are at the same frequency. ”

"In other words, our battle plan is likely to be leaked," said the third prince, "and if someone ignites this smoke, then it is likely that they are leaking secrets." ”

"If there are really spies in the barracks, I'm afraid the ghosts have long been known." Peng Yue pinched his chin and said, he looked out of the account gloomily.

"But the attack is about to start" The third prince hammered the table and looked at the busy soldiers outside the big tent, some of them were tying kites, some were sharpening their knives, and they were full of spirit, "What should I do?"

"By the way, there's another thing," Roland said suddenly.

Baozi made a silent gesture and motioned for Roland not to continue.

As soon as the wind passed, Baozi immediately rushed to the water intake with the third prince, Roland and Peng Yue, and they flew and jumped down the dark river, "Roland, you mean that there will be three intersections ahead, right?" ”

Roland nodded, "That mysterious old lady told me." She also conveyed Yang Xiu's words to you, telling you to return the talisman and not turn the compass. ”

Baozi smiled, "This Yang Xiu, give away things and ask for them back." The compass can't be turned, and the talisman can't call for reinforcements, I'm afraid that only the dagger is still useful. ”

The four of them walked while talking, and walked forward about half a kilometer with a splash, and sure enough, they saw a large flow of water, flowing towards the dark cave, but not three caves in front of them, but five! The five openings are like five big black mouths, quietly waiting for those who enter.

"Are you sure the old lady is talking about three caves?" Peng Yue bit his lip, he seemed to be suspicious of everyone, including Roland.

"Three, don't go on the left, go on the right."

"How do you count these five?" The third prince was anxious again.

"Once you make a mistake, you will never recover," Baozi told everyone, "Think about it first, why this is happening." Everyone lit the torches, the firelight illuminated the entrance of the cave, and the thousands of years of water washed away, making the cave walls smooth and abnormal, and the first hundred stalactite pillars hung down from the roof of the cave, confirming the powerful power of the mysterious natural world.

The five openings stood impressively, smiling at everyone.

"I arranged for five soldiers, with ropes tied around their waists, to walk five holes each, and the real passage would reach the bottom of the Skull Pagoda in about 100 meters."

"What about the other four? Sent to death? Roland asked worriedly.

"It may be dangerous, but it's worth a try." Peng Yue said lightly: "The Anti-Japanese Federation often uses this method when exploring the way in the old forest. ”

Soon, five bold and careful scouts were called over, each with a long rope tied to their waists, and they probed into the five holes respectively, and the five ropes were stretched longer and longer, and one meter of them rolled forward, until all five ropes were straightened, and the five scouts had walked hundreds of meters away, and no one sent a valuable signal.

The third prince ordered the scout to withdraw, and the scout's response came from afar, "Okay, immediately", the rope was slowly retracted, and the scout at the first hole was the first to run back, and the third prince just wanted to go up to question, and found that he was actually ordered to enter the third cave, and the rope on his waist was still pulled straight behind him, disappearing into the endless darkness behind him, while the rope keeper at the third hole was firmly holding the other end. This back and forth is more than 200 meters, and the rope is only 100 meters long, how did you get it?

The person who enters the second cave appears at the third opening, and the fifth cave appears at the fourth, and everyone is intact and everyone has deviated from their own opening.

Each of the openings is disconnected from each other, and the hard stone wall is divided into five directions, which are not connected to each other, how do they cross the hard stone wall?

The third prince ordered the scouts to cut the ropes around their waists, and to retract the ropes at the various openings, and each rope was retracted intact, not lengthened or shortened.

Weird.

"It's an illusion. If you go farther, you may fall into an illusion and be wiped out," Baozi said.

"But there is always a door that shouldn't be an illusion," the third prince scratched his head, "and he has to guess the math problem again." ”

"The old lady should know that there will be illusions, why don't you just tell us the way to crack it"

"Maybe it's a ban. You know, the Heavenly Realm has an ambiguous attitude towards the Ghost Gate, so naturally it will not tell us about the danger. The old man wanted to say it but didn't dare to say it, so he had to hint. Baozi said, recalling the old man's words repeated by Roland, he connected and analyzed the old man's words, and felt that there was a hint in them.

"The old man instructed that the talisman was not available, and the underworld would not disobey the will of the above to send troops to support; The compass is not available, and it is impossible for the gods of heaven and earth to go back in time with us - what is there available, what is left of the three treasures that Yang Xiu gave you? Roland prompted the bun.

"Dagger?" Baozi pulled out the dagger in amazement, he had long regarded the dagger as a weapon to use, but he had never thought that it had any other use.

"What's the use of it" Bun stroked the pattern on the scabbard, asking himself. Baozi raised the dagger, and his first thought was that the dagger might be a ruler, and it could be connected to certain points in a straight line to lock a predetermined position; Or maybe the inscription on its scabbard is a dumb riddle, and if you guess it, you can use a spell to awaken the stone door. But all the efforts and attempts made along these two lines of thought failed, and it was left to the guesses of how Baozi and Roland compared.

"Didn't the old lady let you dig a little bit with a dagger?" The third prince teased: "If it doesn't work, send troops down again." ”

Everyone did not support it, nor did they oppose it, and they all had their own concerns.

"We've checked the top and bottom of the stone wall, and we haven't found anything related to this dagger." Soldier returns.

Could it be that the direction was wrong, or that the old lady - she didn't exist at all, it was just a hallucination of Roland's hypothermic reaction.

"Search the river, look below the river!" Baozi ordered, and all the soldiers did not dare to slack off, and jumped into the river to grope one after another, and the underwater was the only place that had not been searched. Sure enough, as the net was pulled in, groups of small fish with blue light were frightened by everyone and ran away. After a long time, a soldier stepped on a square stone slab, and he tested it with his foot, which was square and square, not like it had been invaded by nature. The third prince hurriedly ordered people to build a fortress and hollowed out the water, and a square stone slab was exposed.

The stone slab is clearly engraved with the inscription of "Dengsendai" three seals!

"Dengxiantai...."The third prince muttered, "This thing is a horse stone placed outside the South Heavenly Gate of the Heavenly Court. When I was a child, I went to play in the heavenly court, and I stepped on this stone to get off the horse and get off the sedan chair, why did it run here, isn't it the South Heavenly Gate that has been renovated? ”

Everyone smelled the slightest link between the Celestial Clan and the Ghost Gate. Baozi carefully stroked and observed the slate, in addition to the three words Dengsendai, there is a small square hole in the center of the slate, like a key mouth.

"Could it be..."Baozi pulled out the dagger, held it in both hands and inserted it into the keyhole, sure enough, the bun turned slightly, and the cliff on the opposite side really made a rumbling sound, and the five holes suddenly flew up like dazzling, like five black spots of light, after several times of interweaving and superimposing, they finally stabilized, and the five holes became three.

Everyone cheered, unexpectedly Yang Xiu had the foresight to give Bao Ziqiang the key to the Black Cliff in advance.