The construction of Shanghai's sewer system began in the first year of Tongzhi (1862), and the British Concession began to plan and build stormwater pipes from the then Central District (now the eastern part of Huangpu District). In the 70s of the 19th century, the French Concession was also launched; Nanshi, Zhabei and other cities began to reconstruct drainage pipes from the beginning of the 20th century. These pipelines are all drained by the Huangpu River, Suzhou Creek, Hongkou Port and Zhaojiabang. At that time, the drainage network of the concession will be basically formed, and there will be a lot of progress, but there will also be considerable shortcomings. It was during this period that Mali and Yang Peng began to be active in the sewer system of the Shanghai Concession.

Politically, the concessions were divided and adopted different design principles and standards, and the pipe network was not systematic, and the design standards were low.

Until the middle of the 20th century, the vast majority of pipes were small pipes, except for a few pipes buried in the road surface with a slightly larger diameter. There are not a few with a diameter of 0.3 meters or less, most of them are main pipelines with a diameter of 1.35 meters, and the largest is a cast-in-place concrete drainage pipe with a diameter of 2.5 meters laid in Dahua Road, Aiwenyi Road and Maithurstow Road in 1942, with a total length of only 1,219 meters.

For a variety of reasons, modern urban planning in China has not done much further sewer expansion. Over time, some of the sewers became clogged and collapsed, and these sewers are still in use today, so the sewer system in the concession is extremely harsh.

The sewer here is a veritable sewer ~ road. There is no comparison at all with the spacious New York sewers inside a certain Teenage Mutant Ninja Turtle that can drive an armored truck.

The cramped space, the foul smelling air, the greasy and sticky inexplicable touch under the feet, and the unknown semi-liquid that has not reached the ankles from time to time shattered all the nostalgic plots and beautiful fantasies that Young Master Lu and Chen Meijia had created for the sewers with the animation of the Teenage Mutant Ninja Turtles. Ziqiao and Meijia's faces are going to be green. It's really not a place like a sewer that people should come down to.

Guan Gu's heart is happy. This section belongs to the kind of direct 1.3-meter pipe, and it is only a hundred meters away from the 2.5-meter-diameter sewer on Dahua Road, and you can successfully avoid this large wave of zombies by following the wider sewer to the Maitherstoff Road and climbing out of the shaft exit. At 1.3 meters, only Meijia, who is 1.6 meters tall, can pass by bending over, and Ziqiao and Guan Gu's height must be half-kneeling on the ground to move. Reasoning Zi Qiao's complaint is reasonable, but compared to being torn apart by zombies, drilling this kind of sewer Guan Gu can still be endured. I think Guan Gu, who came up with the axis back then, also drilled the 0.3-meter sewage pipe in order to chase the corpse of Old Man Yang who was possessed by Mario. It's still a small scene.

The previously built manhole cover seems to have successfully blocked those zombies who don't have a high IQ, and under the sewers, although there are all kinds of small animals, there are still no zombies for the time being. This made Guan Gu feel extremely relieved, although it was quite embarrassing, but at least it was worth it.

The pipe is very narrow, and the three people are one after the other. Ziqiao is the first, Meijia is the second, and Guan Gu is the queen. The first half was quite smooth, although the young master's temper Young Master Lu kept complaining, and Chen Meijia, a kitten who likes cleanliness, also kept wrinkling her nose, but these did not affect them to run for their lives all the way. It was fine, but Lu Ziqiao suddenly shouted: "Ah!! Mouse!! Then she kept backing and hit Mika's nose straight up, making her stumble and almost fall into XXX.

"Rat!! Ahh!!h Even if she is a catwoman, Meijia is still afraid of mice, and keeps retreating with Lu Ziqiao. For the little mouse, Mr. Samurai was naturally not afraid, so he easily pulled out his Nagasawa Mihu from Lu Ziqiao's back, slashed the mouse to death, and then said calmly: "I'll go ahead." You guys follow well. ”

Squeezed from the narrow pipe to the front, when he squeezed with Meijia, there was no trace of rejection in his heart, and he was faintly a little excited, and when he squeezed with Lu Ziqiao, Guan Gu actually refused in his heart. Seven or eight rats and five or six cockroaches were cut along the way, and the three of them came to the entrance of the Dahua Road sewer smoothly. It is at the upper end of the pipe, and the bottom of the pipe is about two meters away. Sekiya didn't rush to jump down, the big sewer pipe was very different from the last time he came down at Mario's request, it was very noisy, and there were rats everywhere underneath!!!

"Rats...... Woo ...... "Before Lu Ziqiao could fully call out, he was covered by Guan Gu's mouth with his hand, the hand that had just been crawling in the sewer pipe tasted quite bad, almost had the effect of poisonous gas, Ziqiao's open mouth touched Guan Gu's hand, and it didn't take long for him to move. It's not that he's dead, or he's fainted. Sekiya motioned with his eyes for Mika to wake him up, and he still maintained the posture of covering his mouth. Meijia skillfully twisted the soft flesh on Ziqiao's waist with her hand wearing gloves studded with synthetic diamond nails, and turned around silently, "Woo woo", under the strong pain, Ziqiao came to his senses. After regaining their composure, the three of them quietly observed the strangely behaving rat colony below from this slightly higher place. Thanks to the nightmarish smell of the sewers that perfectly masked their body odor, the rats below had so far been unnoticed by the rats who were concentrating on some kind of ritual.

Swarms of rats, carrying all sorts of things like ants carrying candy cubes, moved towards a humanoid creature in a hooded battered brown cloak in the center of the swarm. The reason why this guy stirring a pot of dark green inexplicable liquid is humanoid and not humanoid is mainly because under his cloak there is also a thick and large broken rat tail that is only half broken, and a pair of long rat whiskers sticking out on both sides of the head, which tells Guan Gu that this guy who is about 1.5 meters is an upright humanoid mouse!

"Mr. Sprint???? Where are Raphael, Leonardo, Michelangelo, Leonardo da Vinci? Lu Ziqiao silently gestured with his lips.

"Probably not, so coincidentally. Look again. Sekiya also replied with his lips, and secretly thought, if it was the ninja master Sprint, how could it be that he hadn't discovered them until now?

The rat group below passed on the same weird things to the rat people, and then the rat people carefully and according to certain rules added these things to the strange green pottion. Twelve zombie heads, nine cat tails, eighty cockroaches glued with super glue, rotten fish of unknown species, forty gold bars of 500 grams minted by the government bank of the country, and unknown fluorescent mushrooms growing in sewers..... The rat-man stirred as he added, and finally everything was added to the pot, and the potion turned dark red, and the rat-man let out a sharp "squeak" sound, and the rats responded with one squeak after another, and for a moment the already noisy sewer became even more noisy.

"Squeak!" In the end, I don't know whether it was excitement or despair, the mouse closest to the soup pot rushed into the soup pot first, and the mouse behind squeaked into the soup pot according to the style of this strong mouse. For a while, just like the ebb tide of the Qiantang River, these uncountable rats were thrown into the soup pot little by little, and the number of rats decreased at a speed visible to the naked eye. With the influx of rats, the liquid level in this bottomless pit did not rise even a millimeter, but the color gradually changed from dark red to bright purple.

Despite this, when the last mouse was submerged in the soup pot, although the soup was bright purple overall, there was still a trace of dark red that could not be retreated on the liquid surface. The mad-looking rat-man broke the stick of his soup pot in two and threw it into the pot. Unfortunately, it had little effect. It was only at this time that Guan Gu and the others heard for the first time from the mouth of this rat man a sentence that they could understand, although it was English, but it was very slow and clear, plus the three of them had all gone to college, and they still understood more or less: "Bastards of the clock tower, I, Peter. Pediru will definitely succeed! I'm sure I'll create new magical creatures! Friends above, since you are here, come down and help the old man. This child still needs some vitality to be fully formed! Let's get out of the pot too! Imperio！ As another stick in the rat man's hand, which was much shorter than the one stirring the pot, pointed at the three of them, a green light shot out. Guan Gu immediately fell backwards and took the three of them back to the small sewer. Without waiting for the rat-man to continue attacking, he rolled forward and rolled from the small sewer into the big sewer, and at this time he didn't care that the sewer was dirty. Volleyed over in the air, opened the eighth door to the fourth door, and dragged the knife towards the rat man at a speed that was difficult to distinguish with the naked eye. This guy is obviously a magician, and as long as he gets close, he should be easy to defeat.

Peter, the rat man. Pedirus wasn't an ordinary person either, and with a wave of his wand, he unleashed a defensive barrier that had been prepared in advance. Then Shi Shiran recited the powerful control magic, and at the same time, he also took the initiative to activate the reserved magic in the belt, ring, and necklace. He was going to have a textbook battle between magicians and warriors, but Guan Gu didn't have the slightest intention of cooperating, and between the magic power agitation, a compressed magic power light blade passed through Pediru to get the defensive barrier against physical attacks, and almost directly cut off Pediru.

A mouthful of old blood mixed with broken internal organs flowed out of the mouse's mouth: "Damn! Witchcraft!? How can there be magic power in the East? How can you, a wizard, hold a sword? This sentence is Chinese, but the accent is very strange, even more strange than Guan Gu's accent.

"Unfortunately, I'm a psychic, not a wizard. No matter what evil intentions you have. Now your plan is bankrupt! Guan Gu said that he was about to slash the pot of soup medicine with a knife.

At this time, the rat man Pediru actually withstood Guan Gu's slash with his back with his strong willpower, and threw himself into the pot of soup medicine with his strength. A melodious tail note came: "No one can stop you, great Peter. The creation of Pediru! No one! Come out, Chimera! ”