After crawling on the ladder for about ten minutes, everyone could see a platform appear below, and Mu Lan let go of the metal ladder and jumped on the ground.

Then Lin Yiyi and Ah Feng, who was holding Robert with one hand, both jumped on the ground, and Professor Leonard, who was at the top, climbed very slowly, and after a few minutes of climbing, he was a little physically exhausted, and at this time he said eagerly: "Wait for me!" ”

After throwing Robert to the ground, Ah Feng grabbed the crumbling Professor Leonard and took a lot of effort to get him down.

This platform is the rock wall above the bottomless cavern, which has been artificially carved into a level ground that surrounds the entrance of the cave for a circumference of about 100 meters.

Mu Lan has a fear of heights, she grabbed Lin Yiyi and slowly leaned towards the edge of the rock wall, looking down, the black abyss did not see any light, the light from the gap in the house at the top disappeared at a distance of dozens of meters, and the icy cold wind blew upward from the bottom, with a salty smell.

The winding mountain road of [Winner is King] before made Mu Lan tremble, but this time the fear was even worse, just glancing down, the endless darkness made her hurriedly take a few steps back, and there was always an inexplicable feeling that she wanted to jump down.

"That's too deep!" Lin Yiyi sighed: "How many years will it take to dig to reach this scale." ”

Professor Leonard took a breath, he also noticed the bottomless cavern, stood up with his support on the ground, slowly walked to the edge of the rock wall and looked down, then took a breath of cold air and exclaimed, "My God! How did this come about? Is it a miracle? ”

"It wasn't created by your God." Lin Yiyi pointed to some of the remaining excavation tools on the platform, "It should have been dug by the people of Herzros Town." ”

"Impossible!" Leonard decisively denied: "A project of this scale cannot be achieved by manpower." ”

Mu Lan's face was pale, her already fair skin was almost bloodless now, she stood in a position where she felt very safe, and thought for a while: "These step-by-step platforms are obviously built by man, but I don't know ...... this cave."

In this era, humanity has just mastered steam power, and although the power of industry allows people to exert unparalleled destructive power, this level of cave is difficult to achieve even in her time.

"Maybe it's really a miracle......," Mu Lan muttered, remembering the Cult's Sect Believer, Saratos.

Ah Feng has been silent, but he can also see that he is surprised on his micro expression, he silently took out a metal lighter, opened the lid, and the small flames rose, and then he threw it down.

The lighter's wind protection was not bad, but as the flames of free fall grew smaller and weaker, until they disappeared into the darkness.

"Your fire is too small." Mu Lan said, she took out a cold flame stick from her personal space, this thing was used in [Resentful Spirit Coming], and then handed it to Lin Yiyi in front.

Lin Yiyi threw down the cold flame stick, and the blue fluorescence illuminated part of the space of the cave, and the platform could be seen that was the same as everyone's location, but the distance between the top and bottom was dozens of meters.

Then the cold fireworks rod fell faster and faster, and the blue light fell a few hundred meters in an instant, and then gradually disappeared into the darkness.

"Not even an echo!" Lin Yiyi said: "How deep does this have to be, does it lead directly to the center of the earth?" ”

No one answered, everyone was silent.

"Through me, into the City of Pain......"

"Through me, into the abyss of eternal misery......"

"This is the gate to hell......"

Professor Leonard unconsciously whispered these words, and after seeing this magnificent landscape, his original worldview collapsed a little.

"The little old man is a demon again? Isn't the crown with you? Lin Yiyi said in the heart link.

"Feel it." Professor Leonard's recitation of the poem should be a passage from the "Divine Comedy", Mu Lan had borrowed it in the library, and the hole-shaped hell and purgatory were not just appropriate for this situation, and when these flashed through her mind, she no longer looked into it, but looked for a way to the bottom.

On the side of the circular platform, Mu Lan found the steps downward, and then saw that the next platform on the opposite side also had the same steps, these steps were connected to the thirty-meter-high platform, and the left and right steps went down step by step, and if you wanted to go down, you had to pass through these steps.

"Let's go!" Stopping the other people who were still looking down, Mu Lan took out a cold fireworks stick and put it in place, both as a light and as a marker.

Then it was a long downward walk, one side of the stairs was against the wall, the other side was not blocked, Mu Lan silently walked on the side against the wall, and she didn't want to take a second look at the bottomless black hole at all.

The top platforms were empty and empty, and the platforms below began to show some human artifacts, such as discarded torches and kerosene lamps hanging from the walls, but they had been extinguished for a long time.

After descending the third layer of platform, the light of the cold fireworks rod at the top was already very faint, and Professor Leonard was getting older and out of breath, so Mu Lan slowed down a little.

When perceiving outside, just observing the general structure here, many details are not perceived, because this will consume more mental power and time, and Mu Lan can pay attention to those details after entering it.

When she was on the fourth floor, Mu Lan found something strange, and it was lying quietly on the fifth floor.

The shape of that thing was very small, like an enlarged sports earphone, but in an instant, Mu Lan thought of what it was.

This time, ignoring Leonard's whispered complaints, she began to speed up and go down to the fifth floor, and walked quickly to the side of that thing, Lin Yiyi and Ah Feng also surrounded curiously.

"It's ...... Stethoscope? Lin Yiyi said.

The appearance of a stethoscope in this place can only be associated with Leonard's pen pal, Dr. Bourne.

"What are you looking at...... Leonard said breathlessly, puzzled, and then followed everyone's gaze to the stethoscope lying on the ground.

"How do you have a stethoscope......

First it was dulled for half a beat, and then Professor Leonard's eyes widened, and he picked up the stethoscope by the light of Mu Lan's flashlight, and his monocle-wearing eyes narrowed, and he looked at it carefully.

"I haven't seen Dr. Bourne in attendance, but in this case, it's likely that he lost it."

"Dr. Byrne has been here." Mu Lan said with almost certainty: "He disappeared after visiting the Leon family, and the stethoscope here says ......"

"It means that something is likely to have happened to him." Professor Leonard took Mu Lan's words and whispered.

"Be prepared for this." Mu Lan looked at the bottomless abyss, and while she was staring at the abyss, the abyss was also looking at her, and an indescribable feeling began to appear, and the cold air made her hair stand on end.

"Keep going." Mu Lan said, it seems that the main task of Dr. Byrne will be completed soon.