Overlord: Start from the Goblin Lair.

"It looks like it was pushed," Driver shrugged and stepped inside first. "Don't follow me yet, let me see if there's any mechanism, ahem! A mechanism!"

Even a goblin couldn't stand this dusty environment that had been sealed for who knows how many years, and his short body was quickly buried in the smoke and dust. But even in such a place, he was still able to maintain his loud voice while coughing.

"It's okay! The mechanisms here are almost broken! Come in first!" A few minutes later, Driver reappeared from the doorway where the dust had already settled. His cloak was covered with a thick layer of dust. Just by looking at his appearance, you could tell how bad the environment inside was.

"All broken?" Ivy raised her shield and approached first. She glanced at the gap in the stone door frame and nodded. "Indeed. This door should have had a mechanism, but it's all broken - of course, it could have been broken by Sera."

"I didn't even use all my strength!" Sera stamped her feet. "You can't blame me for this! I just threw a punch casually..."

Although they had rarely seen them, Ron and the others were still certain that even a casual punch from Sera could knock two or three goblins and kobolds over - just look at how many casualties she caused in the tavern every month.

Ron was the fourth to enter. When he stepped on the collapsed stone door, the metal sheet in his hand trembled and heated up again.

"Is there something under the door?" Ron jumped down quickly and waved to Sylvia to follow him. "Could it be a relief that was not cleaned up - those cleaning work is only limited to the outside?"

"That's impossible, benefactor." The vampire pointed to the wall behind Ron. "It's completely smooth without any debris. The cleaning inside is even more thorough than outside."

Having said that, the movement of the metal piece was real and had not stopped since just now. Sera and his men used their giant swords and shields as pry bars to lift up the stone door that had already completed its historical mission. The result was not too unexpected. There was indeed nothing on the back of the door, and it was even smoother than the outside.

But under the stone gate, there was a pool of shattered bones - the skull fragments were scattered all over the ground, and some of the broken ends seemed to be brand new.

Driver immediately dropped the bone in his hand and screamed, "Sera beat someone to death with one blow through the half-meter stone door?!"

This was of course nonsense. Sera did not have such divine power, let alone the ability to turn the target's flesh and blood into ashes the moment she killed him. If she could really do that, those biology students at the neighboring academy would probably hire her as an assistant at a high price.

Dealing with bones, especially those from dead critters, is no easy task!
Driver's jokes dispelled the already slight sense of foreboding here, and at the same time, Ron came to a rough conclusion by comparing the mechanism on the door with the bones: the skeleton owner, who had been dead for at least a century, and the stone door met their end at about the same time.

"He used his body to stop the stone door from collapsing, and he probably held on for quite some time," Ron gestured to the action that the other person had maintained until not long ago. "So after his death, his bones and the heavy stone door reached a fragile balance, making the door look intact. But in fact, with just a little force from a punch -"

"He will be shattered to pieces," Ivy nodded. "So theoretically, after he dies, if you want to keep the door as it is, it can't be moved, right?"

Ron and the half-elf's emerald eyes met for a few seconds. "Yes - but the marks on the outside are obviously the result of someone cleaning it recently." Otherwise, most of them would definitely not be so smooth.

When the stone door was opened, such a result was revealed, which made everyone quite puzzled. But fortunately, their confusion did not last too long. Accompanied by a "buzzing" sound, when everyone looked into the depths of the corridor with full vigilance, a misty light blue shadow "drilled" out from the wall on one side. It looked like a human figure, but the mist-like structure flowing on its face could flexibly express all kinds of emotions through fluctuations.

For example, now, Ron and others clearly felt the other party's emotional change from doubt to joy.

"Identity verification, identity verification passed," it made the same sound that Ron heard above the rift, "Number six - wanderers, welcome home."

"What the hell is this?!" Driver hid behind Ron, sticking his head out to look at the creature (if it could be considered a creature), "Is this a ghost or something else!"

"This should be some kind of arcane servant," Ron carefully looked at the being in front of him, "It's between an elemental creature and a spirit, so it can pass through walls and switch back and forth between reality and illusion. I've never seen or heard Gillianis talk about this kind of being, but judging from basic knowledge, it should be artificially created rather than naturally occurring."

"You can tell that?" Sera looked at the hybrid creature, who was about 1.8 meters tall. "What basic knowledge did you use to make this judgment? Don't explain it too profoundly. I don't understand."

"Just like we develop horizontal lines or wrinkles as we grow, other forms of life also have similar mechanisms, but they are different from common sense," Sylvia explained for Ron, "but there are no similar traces on it, which means it was directly 'shaped' into this shape."

"Number 2308 is at your service, Wanderer, welcome home." This special arcane servant immediately emitted a joyful sound from his half-real and half-virtual body.

"If you allow me, please let me take you back to the original room. During your absence, the 'House of Embers' has been iterated three times, and the locations of various areas have been changed."

The arcane servant's words were mixed with some obscure words. Sera and Driver stared at each other in amazement, while Ivy nodded slowly: "It looks very likely to be the creation of Gond believers. Those weird half-crazy people always like to use tones that only they can understand."

"Want to follow it?"

"We can find it ourselves, no need to bother," Ron replied with a twinkle in his eyes, "Are you here specifically to welcome us? If not, you can continue your original service."

"Understood. All is up to you." The servant who claimed to be numbered 2308 had a few flashes of light on his body. He floated to the wall nearby, took out a piece of rag and a small ball of water from somewhere, and then began to wipe the wall diligently. (End of this chapter)