When people think of France, what is their first impression? Maybe the Louvre, the Eiffel Tower, the Arc de Triomphe...... and a series of wonders of the world, but you may not know that the sewer system in Paris is one of the wonders that the French are proud of.

The sewer system in Paris is an underground labyrinth and has the only sewer museum in the world, which is visited by 100,000 visitors a year.

With so many people paying attention to a city's sewers and being willing to pay for tickets to visit them, it speaks volumes about the grandeur of the underground labyrinth.

But what most people don't know is that this was not the case in early Paris, where dirt, stench, and plague plague the citizens of Paris all the time. It wasn't until Napoleon III came to power that he decided to change this situation completely.

It was at that time that the Paris Makeover was carried out and the construction of a magnificent underground drainage system began. Not only Paris, but also major French cities have developed their own renovation plans, including the border town of Besançon, and a sewer system is being built for adults to freely enter.

Such a spacious and tall sewer was a new thing to the French, let alone the new army from the far east, Xiao Hexin and they walked in it in shock.

"Oh my boy, are these Europeans crazy? Why is a sewer built so luxuriously? There is no place to spend the money?"

"That's right, if you look at the surrounding walls, they're all made of stones, how many rooms do you have to build if you build a house?"

"A fork in the road... There was another fork in the road, and this group of foreigners with big noses really built a labyrinth under their feet?"

When have the young men of the New Army ever seen such a sewer, and they have the impression that it is a good public sanitation facility to have a few water-stirring gutters, and it is normal to have all the way to the soil on a sunny day and mud all the way on a rainy day.

Sima Yun carried a horse lantern in one hand, opened the hand-drawn underground tunnel drawings with the other, carefully identified the location, and from time to time he had to look up and count the cast iron manhole covers.

"If you don't speak, no one will be dumb... Do you know how much risk your adults risked to steal this underground tunnel blueprint for us?"

"Now that the French have just begun to build a huge sewer, this is one of their negligent points, and whether they can succeed in rescuing the adults depends on this trembling...... If any of you dares to talk nonsense and alarm the enemy, Lao Tzu will cut you with a thousand knives......"

Sima Yun's anger is reasonable, as far as the hand-drawn underground sewer map in his hand is Xiao Letian's visit to the Besançon City Council, Xiao Letian relied on his brain to memorize, I really can't imagine that after Xiao Letian drank nearly a bottle of wine, he could still depict the sewer network in charge when he returned home.

The rescue plan was designed by Xiao Lotian himself, and when he saw the huge underground water map of the city council that day, he immediately thought of the famous Paris renovation during the reign of Napoleon III.

This is the prototype of a modern sewer system, the world's earliest high-tech drainage system, and of course, it can also be a shortcut to Xiao Letian's escape.

"Now that Luo Huo and his men are lurking at the sewer exit in the east of the city, the carriage to pick us up is ready...... Now we have a team, and in half an hour the adults will return to the station from the banquet, and then Xiao Hexin disguises himself as a thug to storm the Besançon City Council......"

When Sima Yun finished speaking, Xiao Hexin continued, "When the council battle starts, I will be in charge of the perimeter of the villa, and I will lead people to pull out these enemy monitoring points marked by the dragon master...... The final rescue operation was handed over to Nohei Tai and Hyotaro. ”

Xiao Hexin pointed to the location of the cross on the map, "This is it, the villa where the adults are under house arrest, three meters outside the north wall is a sewer well, you have to carry out civil engineering work from here, dig a diagonal passage out, and go straight to the back kitchen of the villa......"

Xiao Hexin and Sima Yun grabbed Hyotaro's left shoulder, and the other grabbed his right shoulder, and said in unison, "Stinky boy, you have to think about it, your godfather is on it, if you can hit this passage in thirty minutes, that's the best, if you can't beat it, then you can only attack..."

Hyotaro was trembling slightly with excitement now, it wasn't fear, it was extreme excitement. As an outsider in the new army, although he is Xiao Letian's godson, he can also feel the estrangement faintly.

Today, Xiao Hexin and Sima Yun were able to entrust themselves with the most difficult tasks, which showed that the Foreign Legion had gradually integrated into the new army, and the Chinese had finally accepted them.

Hyotaro secretly made up his mind in his heart, "Dorjee, don't go far with your soul, bless us with good sailing, and wait for me to bring your ashes home......"

"Brothers of the Foreign Legion, follow me..."The group quickly moved forward, aiming at Xiao Letian's villa.

No French person would have imagined that while Xiao Lotian was drinking with the local nobles, a mysterious army from the East had infiltrated the underground world of Besançon.

Of course, there is an exception, that is, Pierre, who was rejected by Fang Guan, this gold medal intelligence analyst is the only Frenchman in the whole of Besançon to see through Xiao Lotian's plan.

"Am I going to run away? Am I going to tell the whistle or am I going to shut up?, God, what should I do?" in the dark, Pierre's scarlet eyes were skeleted, and his hair was messy like a chicken nest.

It was a room with nailed windows, the property of the French secret police, and the hapless Pierre sat at his desk, empty wine bottles under the flickering candlelight, and the table and bed covered with papers, every word of which contained important French information.

The military movements of the Prussians, the confessions of the spies caught in France, the latest diplomatic intelligence from the Austrians, and, of course, all of Xiao Lotian's schedules and tracks during this period.

Intelligence analysis has always been a science, and it has never been easy to find the shadow of the truth in countless clues, and in this era, there are no computers, and everything depends on the potential of the human brain.

Could the train heading south from Hamburg hide the Chinese troops? Will the intricate Hamburg train schedule make Pierre search for the smell of conspiracy?

The four southern states of Germany were suddenly threatened by Prussia, and so many soldiers were intensively mobilized and maneuvered in the border areas, did they want to divert their attention?

Xiao Letian participated in all kinds of banquets endlessly, although every time he was drunk, and it was difficult to even walk in a straight line, but why did he not miss a word, and it was in vain to let countless people talk about it, why is this?

Pierre's eyes were full of chaotic information, and he could sensitively spot the dark lines in it, and sometimes he himself admitted that this strange talent was really a gift from God.

Pierre was lying on the table, in front of him was half a bottle of burgundy, which he usually didn't have money to drink, but now every qiē expense is reimbursed by the intelligence department, and Pierre is very happy.

But it's also strange, the mellow wine he drank in the past is bitter and hard to swallow today, Pierre knows that it is not the reason for the wine, but the reason for his mood, and Fang Guan's slap completely shattered his self-confidence.

"How can love be associated with politics? What does the emperor have to do with us if he wants to go on an expedition to China, and why should I bear the consequences?" Pierre was not convinced, but what could he do if he was not convinced, Fang Guan did not have time to listen to his reasoning.

When Pierre left the villa that day, he quickly checked a lot of information about the expedition of 1860, which year he had been hidden by the intelligence services, and he did not know many details.

If you don't look at it, you don't know it, you will be shocked when you see it, the British and French troops attacked the city of Beijing and burned and looted all the way, and even the royal garden Yuanmingyuan was burned down, and the Chinese soldiers and civilians were killed and injured countless times.

The expeditions that ordinary people can understand are all beautified by the French government, and the information that Pierre has accessed is real history, and the line of defense in his heart has been shaken by looking at the shocking photos.

"Why are you hurting the people in the war between countries? The Old Summer Palace is the garden of ten thousand gardens, a treasure among human gardens, how can you burn it down? As Hugo said, two robbers destroyed the Chinese summer palace, which is a shame for all mankind..."

Pierre is a romantic Frenchman, and most romantic people are entangled, they cling to the moral standards of their hearts and seem a little out of place, and this entanglement can sometimes really change history.

Pierre, who was reprimanded by Fang Guan, was in an unusually heavy mood, on the one hand, he felt that it was very aggrieved to make Fang Guan angry, and on the other hand, he felt that it was shameful for France to do such a thing that everyone was angry with. Pierre's heart was like a baked cake, and he turned it over, and both sides were burnt with the aroma of it.

"Xiao Letian, do you think I can't guess your plan? You were in the city council, and you were in front of the underground waterway model for fifteen minutes, are you really just curious?"

"Doesn't the unusual movement of the Prussian army on the northern border have nothing to do with you? Your officer corps has saved so many orphans in Hamburg, and the whole Prussian kingdom owes you a great favor, won't they pay it back?"

"Oh... Let me calculate carefully, the probability that the Prussian army will go directly south to rescue Xiao Lotian is about 15%, and the success rate is 45%, no, no, no, this ratio is too low, they won't be so unwise......"

"If the Swiss side opens the border to you, what are your chances of success? Oh God, it's simply impossible to get in at 75%......"

Pierre wasn't really an intelligence expert, he was a mathematician, an expert in applying mathematics to intelligence. What he thinks about is really just the probability of success.

In his calculations, the probability that Xiao Lotian would use the new army to attack Besançon reached 90%, which is really a jaw-dropping number, and Pierre really wanted to report the result to the French authorities, but he still backed down at the last minute.

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