My career has infinite upgrades.

Chapter 67 The Mysterious Realm of Sound Waves, The Labyrinth of Music, Melissant's Guidance

Hearing Melisandre's words, Gu Qing's eyes flickered slightly. He hadn't expected that there would be fragments of Melisandre's companion artifact in this secret realm.

Gu Qing had originally planned to help Melissand find someone after leveling up, but unexpectedly, one came knocking on his door.

After discussing some details with Isabella, Gu Qing and the other two fully armed themselves and stepped into the portal ahead.

The moment I passed through the portal, a strong sense of weightlessness swept over my entire body.

Gu Qing and the other two landed with a muffled thud.

Before Gu Qing and the other two could even assess their surroundings, a high-frequency buzzing sound reached their ears.

There was no sound around, but the space was indeed vibrating at an extremely regular frequency.

Lin Qinghan gripped the hilt of the Ice Soul Longsword, his body tense, his eyes rapidly scanning the surrounding environment.

This is a sealed underground cave, with the surrounding stone walls exhibiting a strange wave-like shape.

It's like liquefying and then solidifying again.

Lin Qinghan shouted, and with a flick of his wrist, the Ice Soul Longsword drew a perfect semicircle in mid-air.

The next moment, a faint blue light flashed on both sides of the wall.

Fortunately, these three pale gold runes are dormant and will not be activated unless certain conditions are met.

Moreover, it's a combination of runes: "Holy Radiance Lockdown of the Holy Church" and "Purification Absorption"!

Clang!

As Gu Qing and his group stepped into a wide corridor, Melissant's voice rose, and the walls on both sides suddenly emitted a dazzling red light.

Gu Qing nodded. The buzzing sound was fine at first, but after a while, it would make people feel irritable.

"Found it, keep up!"

The door had no keyhole or handle, only nine circular grooves of varying depths arranged in a stepped pattern.

Gu Qing gripped the black bone sickle, watched the frequency of the stones on the wall, and stepped onto the first floor tile.

There are eight identical passages ahead, as if only one of them is the correct one.

Just then, Melissand suddenly warned, "Master! This is a trap!"

Was this the work of the Holy See?!

Gu Qing replied directly, "You rest first, I have a way to get there."

The three of them moved swiftly through the passageway as if dancing on the edge of a knife.

A single, extremely deep syllable, with a peculiar penetrating quality, came from Gu Qing's mouth.

Then he raised his hand: "Come out!"

"Master, be careful here. Don't wander off. There are highly sensitive sonic fuses under these floor tiles. The frequency of your footsteps must match the frequency of the surrounding stones flashing, otherwise an attack will be launched."

Before Irina could finish speaking, Gu Qing had already stepped forward.

However, the way the two of them looked at Gu Qing was somewhat strange.

The entrance to the main hall was a huge stone archway, through which black mist swirled, obscuring everything.

"Master, I'm a bit overloaded and need to rest before I can sense things again."

"Buzz!"

Just as Irina was about to step forward, Gu Qing stopped her with a gesture.

Once the sonic node dissipated, Irina waved her hand, and the two daggers returned to her hands.

However, the two people beside him did not know if they had any means to withstand the sonic attack.

Bang!"

The door opened!

A visible ripple spread through the air, heading straight for the gate in front.

"Why did you stop?" Lin Qinghan looked around warily.

Most importantly, once inside, the buzzing sound completely disappeared.

The buzzing sound comes from these patterns.

Gu Qing didn't say anything; sometimes facts are more effective than words.

These are array patterns!

But here, Gu Qing saw three inconspicuous pale gold symbols mixed in with the patterns on the left wall.

The undead guard in the far left passage had only walked a few meters when it triggered something, causing the sound waves in the passage to instantly become disordered and resonate.

As he spoke, he quickly passed through the passage ahead, following Melissant's directions.

One second, two seconds.

The moment they entered, Melissand's warning voice rang out.

Gu Qing looked at the floor tiles under her feet with a solemn expression.

After another few minutes, the three of them passed through the passage and arrived at a spacious underground hall.

The surging black mist was forcibly torn apart, and a huge black shadow rushed out from behind the stone archway, following the high-frequency shock wave.

The transparent sonic blade struck the ice wall, producing a piercing scraping sound, and instantly the surface of the ice wall was cut with crisscrossing grooves.

The next moment, the nine recesses on the facade lit up one by one, like torches being lit.

"This is a tuning device created by a senior mechanic from Jinling Academy. It can simulate a thousand basic frequencies; you just need to experiment slowly..."

""

Lin Qinghan has an extremely high level of combat awareness and can accurately grasp the frequency of attacks.

In an instant, the surrounding temperature plummeted, and a half-meter-thick, azure-blue ice wall instantly formed within the semicircle.

Irina, standing to the side, closed her eyes, trying to use her elven abilities to discern the sound waves inside.

Hearing Melissant's voice in the contract space, Gu Qing took a deep breath, his chest trembling slightly.

Ice shards flew everywhere, but the sound waves were also blocked by the ice wall.

But just three seconds later, Irina opened her eyes, pale-faced: "No, there are too many echoes. I can't tell which way is right at all."

Gu Qing released an undead guard and commanded it to step onto the paving stones in front of him.

Although the sonic maze was very complicated, Melisandre, as the Demon of Sound Killing, quickly sketched out a huge sonic map in her mind.

"This seems to be a domain formed by sound waves," Irina said seriously, her heart-shaped tail swaying gently behind her.

"How do I open this door?" Lin Qinghan frowned as he looked at the door in front of him.

At the end of this passageway lies a vast underground labyrinth.

A high-frequency shockwave rapidly surged from the black mist, splitting it apart like a tsunami.

"Master! I can clearly sense that the fragments of the companion artifact are located approximately on the third level below."

At this moment, Gu Qing and the others had arrived at the last area of ​​the second floor.

"Ice Soul Sword Domain!"

"I'll lead the way. Follow my footsteps, not even half a second off, or you'll be attacked by these sonic blades."

Gu Qing shook her head: "No need."

"I'll do it!"

The sound of mechanical opening and closing came from the front, and the dark bronze door in front slowly opened to both sides, raising a cloud of dust.

The humming sound that could originally be distinguished by its scale has now transformed into a superposition of multiple sound waves, including screams, roars, and cries.

How did this guy know there was danger here?

Gu Qing led Irina and Lin Qinghan forward, and soon they arrived at the end of the passageway.

As a demon of sound-killing, such mechanisms are child's play for Melissand.

"Master, the third note, frequency 200, throat sound closing."

Irina's eyes flickered: "I've seen this door before. It seems to be the door of music, which requires sound waves of a specific frequency to cause resonance inside the door in order to open it."

Looking at the maze ahead, Irina's face showed a solemn expression.

It moved so fast that it even sliced ​​the air with fine black lines.

"Is this the third floor?" Lin Qinghan frowned slightly as she looked around.

Gu Qing closed his eyes and pretended to sense, while Melissand focused all her attention on sensing the maze path ahead within the contract space.

Irina looked at Gu Qing with a puzzled expression: "What's wrong?"

However, the shattered sound wave nodes quickly lit up again, as if they had been reset.

The undead guard only managed to hold out for two seconds before his body was torn apart by the terrifying resonance frequency, turning into a pile of bone fragments!

If he hadn't advanced to the E-rank rune engraver, he wouldn't have been able to sense the fluctuations of those three pale gold runes.

"Turn left, go straight for thirty meters, jump over the second fault line, then turn right!" Melissand quickly called out.

Immediately afterwards, the sound of the undead guards exploding echoed in the other six passages.

Gu Qing suddenly opened his eyes and said to Irina and Lin Qinghan beside him, "Follow me."

This was no longer just a problem of eardrum pain; even my head was throbbing slightly.

"roar!"

"No wonder the monsters here are mutating. In this kind of environment, it's a miracle if they don't go crazy."

Irina looked at Gu Qing with some confusion.

Or is it just a random arrangement made by a light-elemental array master here?

boom!

Gu Qing said, "There's no way to tell which of the eight intersections ahead is the right one; we can only keep trying."

Just then, Melissand's voice came from the contract space again.

Black mist surged, the undead space opened, and eight undead guards, each two meters tall with eerie green soul flames emanating from their eyes, stepped out.

The surface of the stone wall is covered with dense, strange patterns.

"You also know how to break musical arrays?" Irina couldn't help but ask.

Click, click, click...

Irina wasn't idle either. Her hands flew, and two poisoned daggers flipped between her fingers before being thrown out, accurately piercing several glowing sonic nodes on the wall.

Gu Qing led Lin Qinghan and Irina directly into the passage.

Lin Qinghan watched Gu Qing's retreating figure in silence.

Lin Qinghan's expression shifted slightly. Could it be that Gu Qing had a solution?

Irina and Lin Qinghan stared at Gu Qing in shock, completely unexpected that Gu Qing had opened the door so easily.

Only the undead guards in the second-to-last passage on the far right are safe.

Gu Qing wasn't just trying it out casually; he was absolutely confident he could open the door.

"Buzz~"

"There's no need for that!"

As a phantom elf assassin, Irina was highly agile and kept up with Gu Qing steadily.

Upon hearing this, Irina said, "I'll go first. I'm agile, so even if we encounter danger, I can retreat."

"Master, this sonic maze is dynamic; there is only one correct route."

On both sides of the passageway, stones emitting a faint blue light floated in the air.

Halfway there, nothing happened, and Lin Qinghan and Irina's gazes toward Gu Qing grew increasingly strange.

Inside the contract space, Melissand's voice also took on a solemn tone for the first time.

Gu Qing looked behind the stone archway and suddenly noticed that the black mist behind it was churning violently.

He controlled his vocal cord muscles, mimicking the frequency given by Melissant, and slightly parted his lips.

Gu Qing's expression changed, and following Melissant's guidance, he led Irina and Lin Qinghan forward quickly.

I never expected that there would be such a strange gate after entering the secret realm portal.

After the three entered the gate, they found that behind it was a dark passageway leading downwards.

These patterns resemble array patterns, but they are completely different.

Gu Qing's eyes flickered upon hearing this. With his Netherworld Soul Armor, he was confident that he could withstand even a sonic attack.

Gu Qing casually replied, "I had read some ancient books before, and they happened to record a way to open a similar door. I just tried it out, and I didn't expect it to actually open."

"If you take any wrong turn, it will trigger a sonic attack."

Although no monsters have appeared here yet, who knows if they might be lurking in the shadows, ready to launch a surprise attack?

With that, Gu Qing took a step forward and entered through the doorway in front of him.

The entire gate resonated instantly, and the patterns on it rippled.

Gu Qing did not intend to let Cecilia and Melissand come out to fight.

Gu Qing flicked his finger, and the eight undead guards dispersed, each entering a passage ahead.

A dark blue sonic blade shot out instantly and landed on the undead guard in a flash.

Cecilia and Melissant are my trump cards, and I can't reveal them too early.

Irina and Lin Qinghan's light both fell on Gu Qing, and now they could only rely on Gu Qing's divine perception ability.

Irina took out a metal box from her spatial ring, stuck it to the door, and slowly adjusted the markings on it.

"Hurry up!"

Within the contract space, Melissand, who was fully focused on sensing, let out a muffled groan, and a trace of purple blood spilled from the corner of her mouth.

Soon, the three of them arrived at the middle of the passageway.

Within the contract space, a hint of urgency emanated from Melissand's voice, which had recovered somewhat.

Ahead, countless passageways crisscrossed, their interiors shimmering with flickering light and waves of sound that, even before entering, caused a painful sensation in the eardrums.

Then, Irina carefully examined the patterns on the door, her expression changing slightly: "There is a counterattack array on this door. If you miss a note, the counterattack array will be triggered, and you will be attacked by sonic waves."

Gu Qing replied calmly, "Don't worry, I understand. I will definitely help you get the fragment of this companion artifact."

Within the contract space, Melissand had already clearly deconstructed the resonant frequency of this door.

The moment the undead guard stepped on it, the floor tiles trembled instantly, not in the same frequency as the flashing stones.

"This should be the second level of the secret realm, but this maze seems to be a dead end."

"Master, I can sense that the fragments of the accompanying sacred artifact are behind that stone archway."

The three walked along the passage and soon arrived at the end of the cave.

As they went deeper, the frequency of the surrounding sound waves began to accelerate.

"Buzz!"

Irina and Lin Qinghan were both stunned, not expecting such danger.

They didn't encounter any monsters around, but at the end of the cave stood a dark bronze gate ten meters high.

Just how many secrets does this guy still have?!

A piercing metallic cutting sound suddenly rang out, and dozens of transparent, arc-shaped sonic blades indiscriminately sliced ​​through the walls from both sides.

The undead guard's upper body was severed and crashed to the ground.

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