Right now, this round stone gate is so abruptly blocking the three of us.

The round stone gate in front of me is very different from the narrowness of the entrance to the ruins, and such a huge volume, even if it is placed now, it will probably take a lot of manpower and material resources to place it here.

It was already a mottled stone door, revealing a dull white.

I guess I've been buried deep in the ground, and I don't know how long it has been.

Then, I came to the stone gate and looked carefully to see if I could find some clues.

At this moment, Hotaru was shocked by the scene in front of her, and exclaimed without opening her mouth wide: "Obviously, the entrance just now can only accommodate a maximum of two people side by side, but I never thought that the space in it would be so large, and the volume of this stone gate is too large, how did the person who made such a stone gate carry it here?"

Hearing Hotaru's words, Suewang looked at Hotaru and said, "Hotaru is right, although I have long known that there are various monuments and ruins sleeping underneath City I, but seeing such a scene recently, I can't help but be amazed, meaning, have you found any clues?"

Faced with the question of hunting, I temporarily shook my head and said: "Not yet, let me investigate again, such a heavy and huge stone gate, if you want to use ordinary blasting methods, it can't be broken at all, even if it uses the power of the attributes, it will not help it, and this round stone door, although its material looks like stone, but after careful observation and touch, it can be found that it should not be the material of stone."

Moreover, this stone gate seems to contain some indescribable strange power, no wonder conventional means cannot leave even a trace of it. “

After I finished speaking, Hotaru curiously approached me, and then the brilliance in her hand flashed, and the flying dagger she used appeared in her hand, and then she stabbed at the stone door in front of her with all her might.

However, the next moment, only Hotaru exclaimed, and the sound of steel breaking was heard.

When I looked at Hotaru beside me, I saw a stunned and puzzled face, just looked at the flying dagger in my hand that had been broken into two, and said in surprise: "How can this be, the material of my flying dagger has obviously been improved, even ordinary heavy steel armor can easily pierce it, but now you see, this stone gate really can't even cause a scratch." ”

Seeing this, I motioned for Hotaru not to continue, and then said, "Presumably, this stone gate cannot be broken by external brute force, and I think there must be a way to open it." ”

Seeing me say this, Hotaru reluctantly threw away the flying dagger that was only half left in her hand, and said: "Since stepping into this city, I feel that more and more incomprehensible things have appeared, and for a while I wondered, is this still the world I know?"

Hearing Hotaru's words, Hotaru looked at Hotaru and said, "Don't worry, Hotaru, this world is still the world we are familiar with, in order to prevent it from continuing to corrupt in the hands of the Order, that's why we will go here and expel the Order, right?"

Then Hotaru nodded helplessly, and just retreated behind me, paying attention to me as she continued to investigate the round stone door in front of me.

Because this stone gate is too huge at the moment, I can only investigate at the lower end of it, and after half an hour, I can find nothing.

Then, with a wrinkle in my eyes, I unfolded the phantom wing technique so that I could continue the overall investigation.

Eventually, I succeeded in discovering the end of this stone gate.

At this moment, in the center of this stone door, a small hole appeared in the recess, as if it could put some items into it.

Seeing this, I secretly said in my heart: "If I am not mistaken, this is the key to opening this round stone door, but what is to put in it?"

Puzzled for a while, I lost my wings and fell back to the ground.

Hotaru, on the other hand, walked up to me with great interest and asked, "Yi, Yi, did you find anything?"

I nodded my head and told Hotaru and Sue what I had just discovered.

After listening to this, he pondered: "Presumably that is the key to opening this stone door, but we don't have the props to open this round stone door, and we don't know what it is." ”

I looked at Mo and agreed, "That's true, I thought that there would be a mechanism or clue in this circular stone door that could be opened, but I didn't expect that I would need the necessary props to open it." ”

Hotaru looked at me and said, "Why don't you try it with my dagger?" ”

I looked at Hotaru helplessly and said, "How is that possible?" ”

Hotaru was still not ready to give up and said to me, "How can you know if you don't try it?"

Hotaru then handed me a dagger and told me to try it.

I couldn't resist her for a while, so I had to spread my phantom wings again, holding a flying dagger, and came to the center of the circular stone door.

It then stabbed at its recess, but had no response.

After that, I was in mid-air, looked at Hotaru and said, "Look, I'm going to say it's not going to be that simple." ”

Then, as I was about to leave here, a flash of inspiration flashed in my head.

Turning abruptly, he looked at the depression, and then thought to himself, "This is a keyhole-like depression..."

Then, I sank my consciousness into the Chaos Ring and began to search.

After rummaging through all kinds of items, I took out the quaint and strangely shaped stone key that I had obtained by accident when I went to 'Nine Nights' to meet with Lei and the others after I first met July.

"I thought I had thrown this unknown stone key somewhere, but fortunately, it seems that I put it into the Ring of Chaos, along with the miscellaneous items in the room. “

Holding the stone key, I looked at the depression of the stone door and said, "It seems that this stone key should be inserted into it, try it..."

Then, I pressed the stone key against the depression of the stone door, but at this moment, the stone gate in front of me and the stone key in my hand were like magnets, attracting each other.

Before I could insert the stone key, it was already out of my hand, and instantly embedded in the hollow of the stone door, as if it were one, stitched together...