"... I wanted to go deeper yesterday to see it, but it was too dark to see anything. So this morning, I took out my father's flashlight in the garage ... Look!"

With a "click", Kevin looked at the big flashlight in Candice's hand and gave out a little yellow light, and instantly opened the dark in front of him with a big opening.

"Oh, it seems you've planned to skip school today!"

Little Kevin scratched his head and didn't know what he was feeling right now—to be honest, he was very concerned about that voice, because he heard it several times in his home yesterday.

So, why does this sound come out in this "ground hole" which is taller than adults?

Naturally, Little Kevin would not understand why.

He didn't even know that the "great hole" in front of him at this time was actually one of the many abandoned drains in the London sewer system that had been included in the "Seven Major Industrial Miracles".

If he knew the way, it would be fine even if he wanted to go home along the water channel.

"Come on, Kevin! What are you doing there!"

While little Kevin was still listening to hissing and wondering what was going on, Candace was already holding a flashlight and beckoning at him deeper.

"Ah, okay! I'm here--"

The words did not end, he finally seemed to put aside all the concerns about truancy and quickly chased Candice's side. Then, I saw the two children side by side, walking excitedly and curiously deep into the water channel by the flashlight.

Speaking of which, London ’s sewers are acclaimed for no reason, not only because of the marvel at its huge amount of work, but also because it truly protects cities and residents who were trapped by severe pollution.

Prior to the construction of today's sewers, London had made great progress due to the rapid industrial development, but the contamination caused by it has started to breed diseases due to the backwardness of the sewer system.

For hundreds of years before the last century, round after round of outbreaks caused Muggle death rates to rise and fall, and London gradually became stinking.

I remember at that time, the originally clear Thames was unable to swallow brown sewage, and the streets in central London smelled bad. Even the House of Commons had to hang curtains soaked in lime water to block the filtering. Unbearable smell.

After that, after a series of deliberations and inspections to Paris, France, it took more than six years, and a huge sewer system stretching more than 2,000 kilometers was finally completed in London.

A large amount of sewage was sent to the sewage treatment plant, and all the drainage outlets that were previously discharged into the river were also abandoned. Some were dismantled, some were borrowed by the new system, and some were still vacant.

Now Kevin and Candice are walking, one of the many abandoned drains.

"Oh!"

Even after Candice took a turn from a fork, she had not even taken a few more steps, she was even surprised. Because she saw another intersection of bifurcation passages, and it was much larger than that just now.

As the flashlight's light slowly moved around, the brick wall gradually came into view. The design of the vault, the excavation of the steps and the orderly forks make this place look like an underground castle.

"I always think that you can run into a vampire if you walk further!" Candice watched the deep passages with interest, as if she didn't know the fear at all, "Well ... maybe it's something else What? Like a gargoyle ... or a demon or something? "

Children always like these things with fantasy, although adults sometimes say that these things do not exist, but this does not prevent children from continuing to think.

Of course, a little girl as big as Candice generally likes a little more unicorns. It's not too much like her being interested in evil creatures like vampires and demons.

Hearing what she said, Little Kevin couldn't help looking at it with some worry.

"That voice ... but it's better not to say what you say! Otherwise we would be finished!"

"Ah, Kevin, are you scared?"

Watching Candace start to chuckle, Little Kevin immediately looked up and said loudly:

"Who's afraid! I'm worried about you ... Haven't you watched the movie? People like you who don't worry about anything are usually the first to die in a monster attack!"

"Oh!" The snicker on his face suddenly became annoyed when Candice heard, "You will die!"

"Snapped!"

Seeing her raising her hand, she slaps on top of Kevin's head, then turns around, holding a flashlight, and walks to one of the forks.

Little Kevin covered his head and poked his mouth, and had to quickly follow up-no way, here can not be separated from Candice's flashlight, without light, you can't even see your feet.

After the two passed through the fork with a trench, they immediately discovered that there was a circular passage wider than what they had seen before.

Just looking at the diameter of this passage, I'm afraid that five or six adults can stand side by side, and even the carriage can pass here safely.

"Yeah! It's dirty!"

As soon as he set foot, Candice found herself stepping into the standing water-here, finally there were signs of water, but not much for the time being.

It's just that the water is full of oil, and there are some strange and dirty things floating on it, which looks disgusting. Even Candace wasn't really afraid of dirty girls, but when she saw this scene, she couldn't bear it anyway.

"Oh! God ... I think we should change course ..."

Under the flashlight's light, Kevin also saw the accumulated sewage, but fortunately, Candice stepped in first, so that he didn't step in.

But at this moment, he saw that he whispered his ears, then even whispered:

"Listen! That sound seems clearer ... have you heard it? It's the sound of hissing! I bet we must be getting away from it ... wow! It's a rat!"

Before Kevin had finished speaking, he suddenly saw several very large mice running along the edge of the flashlight's light, and the sewage was rattling.

And just as he exclaimed, Candis, who also noticed the mouse, hurried back to him.

Although there was no screaming or anything, from the act of Candice grabbing her arm, Kevin knew she was finally scared.

"Hey! It's just a mouse ... Ah! You're not afraid?"

Thinking of Candice's ridicule to himself just now, Kevin decided to take the opportunity to fight back with his teeth-there is not much chance to make fun of Candice, because this girl is better than the boy in many places.

Just didn't expect that she would still be afraid of mice?

"Snapped!"

"Who is afraid!"

Kevin's forehead suffered another plague, and this time Candice obviously used more strength, so that his head hurt hotly.

"... violent woman." Little Kevin couldn't help muttering softly.

However, although Candice was scared by mice, she seemed totally afraid of other things. After the rats disappeared, she was revived again, and happily went deeper.

Even if there is sewage here and the smell is bad, as long as you cover your nose to avoid standing water?

She heard the "fizz" just now, and she was obviously very interested in the movement that became clearer.

As for the rat that may still appear ... Hey, Candice's sturdy nerves were thrown behind him.

"Kevin, keep up! What are you doing!"

Unfortunately, the sewer exploration of the two of them will naturally not be smooth. Not to mention what was happening to that weird movement, just before the source of the sound was found, the shadow of death had already enveloped them.

After walking along this wide aisle for more than ten minutes, Candis couldn't help but soften. If Kevin hadn't pulled her aside, she would almost have fallen in the middle ditch.

"Hmm ... thank you."

Candace, supported by Kevin, shook her head vigorously, then with a little confusion:

"How do I feel ... a little dizzy?"

Of course, two children will not know that many kinds of harmful gases can easily be produced in the sewer, and these gases usually poison people unknowingly.

The two of them were able to walk here before the problem occurred, but it was still because of the relationship that the passageway had been vacant for many years.

"Oh, Candice, are you okay?"

Little Kevin was holding on to the girl's body with a little effort, grabbed the flashlight in her hand and shot it back and forth, trying to find a place to rest Except for the steps for the maintenance staff to walk, the other places were so dirty that they could not sit.

But for a moment, he helped Candice to go a little further, and finally found the next fork in the passage wall.

Seeing this, he quickly dragged some sleepy Candice into the fork and came to a solid earth platform that was somewhat restable.

After leaving the wide and long aisle, Kevin felt that the air had not become so bad.

But at the same time he was holding Candice, he suddenly felt a dizziness in his head. He was stooping, and immediately he didn't stand, and fell directly on the girl.

"Kevin?"

Candace pushed Kevin hard to hold herself, but she had already weakened her hands and feet and could not exert much energy. However, just at this moment, Candice felt a slight shock, and suddenly came down ...