The whistling wind continued to pass by his ears, taking away the air and the warmth that was already left, and the originally cold temperature also decreased a few points as he stepped into the shadow of the high wall, as if the mood of the time Qing was hanging in front of him. Hardly pinching the emerald green stone in his hand, he moved his mood away from the empty feet in front of him as he climbed the steps, and his face, which was covered with dried blood and dust, also turned around, facing the square below the steps he had climbed - it seemed that due to the gradual approach to the shelter area, the wind here was a little quieter than before, and the tangible trajectory was also moving forward along Duan Qing's field of vision to both sides at this time, With the sight of ruined walls and abandoned streets scattered forward in the shape of stars, it stretches out in all directions of the square. Tiny gravel and dust, still driven by the strong winds in the sky, appeared at the end of the picture from time to time, tumbling and falling below the faint invisible shouts of killing, which sounded more chaotic and intense than a while ago, and even the sunlight closer to them seemed to be unable to dispel the coldness and cruelty contained in them: "......"

"What are you doing?"

A voice from Christine then rang out in the back of his head, waking him up from his heavy heart in an even colder voice: "Hurry up, we don't have as much time as you think." ”

“…… I know. ”

The focus of the recovered gaze gradually fell on the huge ice sculpture in the center of the square, and Duan Qing, who was almost naked, then turned his head: "I just think...... This place seems to be perfect for enjoying the scenery. ”

"If you want to call it a landscape...... Yes. Christine, who was already waiting by the door, turned her head with Ayina in her arms: "Stone." ”

Without saying too many jokes, Duan Qing, who had closed his mouth, then walked to the foot of the gate inlaid with various unknown magic arrays, and then raised the Stone of Orkonos in his hand under Christine's intently gaze. Those magic arrays, which had already been blown away by the strong wind, then responded to the call of the stone in Duan Qing's hand, emitting the same glowing green light, but the magic resonance that seemed to be connected seemed to have ended only at this step, and there were no more changes: "...... It doesn't seem to be so easy to open. ”

"Is there a need for something else? Rite? Password? ”

"It can't be a sesame open door or something, right?"

"Open the sesame door? What is that? ”

“…… It's nothing. ”

Pressing his forehead, Duan Qing, who lowered his head, took a few steps back, first looked at the top of this giant gate with his full gaze, and then rubbed his chin: "Such a flat structure, it doesn't look like there are any buttons...... Could it be voice-activated? ”

"If I could, I'd love to fly right through here." Christine's voice then rang in his ears: "But...... Judging by the countless times the city has flown in the air, the defense against the air should be the strongest here. ”

“…… Not going to give it a try? I can't see how tall the wall is......

"You don't have to try, it's mostly closed."

Pointing to the surface of the gate in front of them, Christine replied in a nonchalant voice, "I don't want to be knocked down by this defenses after a few futile circles around this place...... What do you think of without the experienced adventurer? ”

“…… I have a question. ”

His face gradually became tangled, and Duan Qing's inquiring expression became a little weird: "Do you know how to sing?" ”

“…… What do you want? ”

"Ayina is a singer by profession, and she sings very well."

With a slight gesture of shaking a false hand, Duan Qing's face became a little unnatural: "You should have seen the previous ceremony...... It took her so long to teleport us here. ”

"You mean to say...... Is the song the key to open this door? Christine's face also began to become unnatural: "Is this really the case?" ”

"I'm not sure, but it's the most likely of all my guesses." Duan Qing shook his head: "Gais...... The Oaklits are a people who live in the sky, and perhaps they were born to sing songs of the sky and the like......"

"You have a point, but unfortunately I don't belong to my sister's type of singing and dancing." The corners of her mouth twisted slightly, and Christine hid her complexion in the movement of bowing her head: "And...... Even if I could sing, I didn't seem to know what to sing. ”

"Words of the lyrics...... Let me think. Duan Qing pinched her chin and meditated: "She used the language of the Oaklis clan, so I didn't understand a word, but if I'm not mistaken, she said it at the end of the previous ceremony......"

"Feel the blessings of the sky."

He held up the stone in his hand and said in a rather pious voice, but a brilliant green light suddenly lit up in front of the two of them as his words echoed. The streamer on the entire gate also followed the magnificent scene of rapid circulation, and the green light like a searchlight condensed in the air into a phantom of a singer singing with her arms outstretched, and then in Duan Qing's increasingly surprised eyes, she softly sang a melodious ballad.

Boom Boom –

A loud tremor then covered the tail note of the ballad that was still reverberating, accompanied by the violent roar of the magic array on the door that swirled open at the end, and a tiny gap then appeared in the middle of the two doors that gradually opened, completely covering Duan Qing's sluggish expression. The pitch-black light and shadow full of ancient aura then appeared in the center of this high-altitude city flowing with clouds and strong winds, and then it was replaced by the blue light contained in the staff raised by Christine, who had already stepped into it with one foot, and then turned around and broke Duan Qing's sluggishness with her own smile: "What's the matter with our adventurers?" Let's go. ”

"Ah...... Oh. ”

“…… Didn't you think of the way to open the door, why did you look even more surprised than me? ”

"No, I'm just ......"

In the scene of the door slowly closing behind him, Duan Qing held up the green square in his hand: "I just didn't expect it...... She'll just stay there. ”

“…… Keep that stone for sure we may be able to use it later. ”

Slightly reminding the other party, Christine, who was walking in front, then began to observe the left and right in the dark hall: "Now...... Let's see what's in store here. ”

“…… It seems to be a hall. ”

Looking at the various elegant decorations that were still well preserved and the flag patterns hanging on the wall, Duan Qing, who came back to his senses, replied in a low voice: "Probably it is used to receive every guest who comes here." ”

"The Oaklits are arrogant by nature, how could they have designed such a place to welcome outsiders?" Christine's voice then appeared on the other side of the hall, "Unless they're there to greet the royal family." ”

“…… Royalty? ”

"To be precise, the royal family that rules the Ancient Magic Empire."

With a deep sigh, Christine's voice became low: "The Magic Council is the highest power center of the Ancient Magic Empire, and the archmages there are also the most powerful people in the world at that time, and their strength is probably beyond the reach of even the entire Oaklit clan, not to mention the various powerful followers gathered under the command of each of them......"

“…… Didn't the Oaklit clan themselves have a decent archmage? ”

"Maybe there is, maybe not."

As if she wasn't sure of the answer, Christine's voice became hesitant: "It is impossible for a race that can create an entire sky city without superb magic craftsmanship, but according to the history we know, it is true that the sky clan has not appeared a powerful mage who can enter the magic council......"

"It's a contradiction."

Picking up the nearest bottle-shaped decoration, Duan Qing said to himself, "How did they come up with this process, is it collective wisdom?" Or is there some master behind the scenes? ”

“…… I don't know. ”

The sound of footsteps began to move forward with Christine's voice, and finally circled to another large door on the other side of the hall, which, unlike the previous one, was easily pushed open by the archmage's hand: "This topic can now also be included in the research topic we want to solve. ”

“…… Do you have any other topics, can you tell me about them? ”

"There are still many issues left behind, such as whether the enhancement skills of wind magic were researched by this clan, whether they still retain other advanced technologies that have not been passed on to the public, and whether they are the founders of the ruins at the top of Falling Star Mountain, and whether the protective circle left there has anything to do with them...... Not. ”

"It seems...... What's the connection? ”

The creaking sound of the door moving continued to sound behind them, and the figures of Duan Qing and Christine passing through the door then stopped in a wider hall in front of them, and the rotunda with complex lines also appeared in front of them, flashing a strange pale white fluorescence on the ground and the surrounding walls. Slightly probing with her staff, Christine, who had withdrawn her arm, then frowned herself, and while placing the Ayna ice sculpture that had been held in front of her on the ground, she issued a timely warning to Duan Qing: "Don't touch these magic arrays, the energy on them ...... It's very similar. ”

"Similar?" Duan Qing cautiously approached a few points: "Similar to what?" ”

"Do you remember those magic arrays on the top of Falling Star Mountain?" Christine reminded in a low voice, "It should be the same thing." ”

“…… If you touch it, you'll be thrown out of this hall? Duan Qing, who had been reminiscing for a while, asked in surprise, "How could they ......?"

"This should only be a one-way means of protection, used to protect the flow of energy inside from skewed."

Raising her hand to interrupt Duan Qing's words, Christine's gaze turned to the inside of the rotunda in front of her: "Although I don't know how long the energy here has been circulating, it shouldn't be more attenuated than the library on the top of the Falling Star Mountain......

That is to say...... Am I even more untouchable? Looking at the circuits that were densely gathered in the center all over the ground, Duan Qing suddenly became a headache: "How can this continue to go?" ”

"Of course, there is a way to crack it, after all, we have been studying it on the top of that mountain for several years." Floating up slightly, Christine's figure began to move slightly towards the interior of the hall: "But that will take time, and it may lead to irreversible consequences." ”

"You mean ......"

"Even if this is not the power center of Sky City, it must be a very important place."

Disappearing into one of the passages next to the rotunda without looking back, Christine's voice was then heard in the distance: "Maybe it's the teleportation center, maybe it's the control center, or something......"

"If you can't fly, you'd better stay where you are." Her voice paused for a moment, and then returned to Duan Qing's ears again: "After I remove the energy overload, this place should be able to pass safely and unharmed." ”

"Hey, am I just going to have to watch here?"

"Unless, of course, ......"

As if not intending to explain any further, Christine's voice eventually began to fade into obsolete with the sound of her footsteps moving away: "If only you could find another way to crack it......"

"It's okay for you to come by yourself."

The faint sound of energy then filled Duan Qing's ears, suppressing back the grinning expression he had just wanted to make, and with his bare hands, he then looked back and forth at the interior of the hall full of energy pipelines, and let out a helpless sigh. Taking a few steps back slightly, the man standing there suppressed his restlessness rising again with a deep breath, and the expression that had been constantly searching for the surroundings gradually rested on the head of the ice sculpture over time.

"I thought I could spend this last game time with you, but I didn't expect it to be ......"

Saying this to himself, his gaze lingered for a moment on Aina's frozen face, whose eyes had been closed, and then, as if remembering something, he took out the green stone again: "The Stone of Orkonos...... Okonos ...... The Wind Surges...... Emerald Blue Blessing...... That's right. ”

"I don't think I've ever seen the skills and special effects described above."

He sighed faintly, and at the same time began to look around here again: "What's ......?"

"Is there a way to trigger this skill?"