In the center of the city's ruins, a huge pyramid stands on the ground, the pyramid is very huge, about 30 meters high, and the width is about 30 meters, this pyramid is fully layered with nine layers. There are steps on all sides of the pyramid to reach the top, and there are 91 steps on each side, and all the steps added together make up 365 days when the top layer is added.

Underneath the steps on the north side, there is a carving of the head of the Quetzalcoatl god. It is said that at the sunset of the spring and autumn equinoxes every year, due to the sunshine, the side wall of a set of steps on the north side will form a zigzag isosceles triangle under the sunlight, just like the pattern of the back of a python, together with the snake head carved at the bottom, like a giant snake swimming from the top of the tower to the earth, symbolizing the god Quetzalcoatl waking up at the spring equinox and climbing out of the temple. Each time, the illusion lasted exactly 3 hours and 22 minutes, every minute and every second. This mystical landscape is known as the "Serpentine of Light and Shadow".

The above materials were read by Li Mu in the book, but it was summer at this time, and Li Mu was not interested in waiting here to verify the truth of a rumor, he just looked at the huge snake head, and walked straight up the steps.

Shuang'er also glanced at the huge snake-headed statue, and she felt the feeling of being watched even stronger. Perhaps the owner of this peep is inside this pyramid.

"Don't let me meet you, or I'll want you to look good." Shuang'er said hatefully.

At the top of the pyramid is a small temple with a side length of only six meters, and the walls are carved with Mayan characters. Compared to the majestic temples of other religions, this small temple was a bit too small, but Li Mu felt that things were not so simple.

He took a lantern out of his bag, lit it, and stepped inside, and sure enough, he found a black hole in the center of the temple, and a stone staircase winded down as if it led to an endless abyss.

"Let's go, let's see what's down there." Li Mu looked at the scene below, silently took out his bayonet, and then took the lead to walk down.

The staircase is very deep, called spiral, and goes straight down with no end in sight. It is surrounded by narrow stone walls, and I don't know what material is smeared, but it is not reflective at all, and even the light from the lantern is absorbed. Fortunately, Li Mu's raven mask provided dark vision, and Shuang'er's sunburst pendant provided visual brightness, so that it did not affect their walking in this dark place.

It's just that this unchanging dark staircase makes Li Mu a little uncomfortable. It feels like walking through the esophagus of some giant creature.

"Shuang'er, how long have we been gone?" Li Mu suddenly stopped and asked.

"About ten minutes." Shuang'er said with a sigh of relief.

"It's a thirty-meter-high pyramid outside, it's more than enough to climb ten in ten minutes, not to mention that we keep going down, if I'm not mistaken, we're at least seven hundred to eight hundred meters underground now, why did people dig so deep at that time?" Li Mu was a little suspicious.

"I don't know, I guess they have their own considerations." Shuang'er wasn't so sure.

"Then let's try it, and remember to leave a mark on the ground every hundred steps down." Li Mu said.

"yes, I see." Shuang'er nodded, thought for a moment, and then carved three words on the ground with a long sword, steamed lamb.

"Uh, why are you carving three words?" Li Mu was obviously stunned for a moment when he saw these three words, and then asked.

"Markers, of course." Shuang'er said as a matter of course.

"Wouldn't it be nice to make a mark and make a simple symbol? Why engrave such a complicated word? ”

"Recently, there was a bad guy in the maze who followed others and destroyed the marks left by others. At that time, I was thinking, what should I do if I met such a bad person, so I thought of this method, I can not only engrave Chinese characters as a mark, but also leave my own pen style, others want to imitate it. Shuang'er said proudly.

"Well, well, it's good if you're happy." Li Mu nodded, he didn't want to know which book Shuang'er was reading. What a cheap person would do to modify other people's marks like this?

So, Li Mu kept walking down, and Shuang'er carved happily in the back, "Steamed bear paws, steamed deer tails, roasted ducks, roasted chickens, roasted goose, roasted pigs, roasted ducks, sauced chicken, bacon, pine flowers, small tripies, sauced meat, sausages, assorted crisp plates, smoked chicken white face, steamed eight-treasure pig, fish-flavored shredded pork, cashew nut chicken, tiger vegetables, rice, dumplings, leek boxes, roasted cold noodles, three plates of mutton, two plates of fish balls, and a ...... of green vegetable platter"

"Wait, I can understand that you engraved the name of the dish, this is in order, but what the hell is the fish-flavored shredded pork in the back? There is actually a leek box baked cold noodles in the back? Why did even the hot pot side dishes come out later? Li Mu looked at Shuang'er in disbelief.

"I won't be able to do it later, so I carved everything I like to eat, and I can carve whatever I want." Shuang'er said as a matter of course.

"Okay." Li Mu looked at the long list of menus on the ground helplessly, if the owner of this pyramid knew that someone had carved such a long list of menus in the secret passage as a mark, he would probably be so angry that he would come back to life.

When Li Mu was depressed, Shuang'er suddenly shouted, "Childe, come and take a look." ”

"What's wrong?" Li Mu asked curiously.

"There are three words for steamed lamb here." Shuang'er said, pointing to a mark on the ground.

"Did you carve it yourself?" Li Mu asked.

"Well, it's my own nick, and there's still a frost effect on it, it's definitely my own handwriting." Shuang'er said.

"Oh, in that case, then the reason why we haven't been to the bottom makes sense." Li Mu looked at the mark on the ground and said.

"What's going on?" Shuang'er asked curiously.

"It's actually a soul ladder." Li Mu explained.

"What is the Soul Ladder?" Shuang'er looked curious.

"Oh, it's actually just an optical illusion, the design principle is similar to the Ring of Möbius, mainly using visual and perceptual illusions to make people walking on it feel like they are always moving in the same direction, in fact, they are just going in circles in an enclosed space." Li Mu explained.

"So what are we going to do?" Shuang'er asked.

"It's very simple, go back or go back, because this can't be a completely enclosed space, and with care, we can find our way in." Li Mu said.

"Oh, wouldn't that be all in vain? Is there another way? Shuang'er asked a little unwillingly.

"Well, the second method is also very simple, that is, vigorously produce miracles!" With Li Mu's words, a black elemental torrent emerged in his hand, and the black elemental torrent rushed straight downward, rushing away the originally neat stone steps and rushing towards the depths of the ground.

"Childe, this is ......"

"Since someone has designed a maze and we are not good at deciphering it, the best solution is to tear it down. As long as you go all the way down to find the real dungeon, I don't believe that the Mayans went to great lengths to build such a place and left a treasure map with nothing. ”