Lian tried to explain: "We are here to find the Ancient Key, which is of vital importance to us. Please let us through."

Li Na remained unmoved, brandishing her longsword and pointing it directly at Li An: "Whatever your purpose is, this is not a place for you. Attack!"

At Li Na's command, the guards swiftly launched their attack. Guo Yao immediately stepped in front of Li An, her hands rapidly forming hand seals, instantly creating a pink barrier that blocked the first wave of attacks. Li An then took the opportunity to observe his surroundings, searching for a way out.

"Li An, watch out!" Guo Yao suddenly shouted. It turned out that a guard had taken advantage of his unpreparedness to launch a sneak attack from the flank. Li An dodged the attack with a swift movement, and at the same time, he swung his hand back, sending a black energy wave that struck the guard, instantly rendering him unable to fight.

Upon seeing this, a hint of surprise flashed in Li Na's eyes, but she quickly regained her composure: "It seems you do have some ability, but it's far from enough!"

She leaped into the air like a silver cheetah, charging straight at Li An. Her sword flashed like lightning, each strike containing terrifying power capable of tearing space apart. Li An dared not be careless, focusing entirely on countering Li Na's attacks. The two exchanged blows, locked in a fierce and evenly matched battle.

Guo Yao provided support from the sidelines, occasionally releasing pink energy waves to disrupt the guards' attacks while simultaneously looking for opportunities to provide assistance to Li An. However, Li Na's strength was simply too overwhelming, and even Li An was gradually finding himself struggling.

During a fierce exchange, Li An was struck in the shoulder by Li Na's sword, and blood instantly stained his clothes. The pain blurred Li An's consciousness, but in this life-or-death moment, an unprecedented power surged within him.

"I can't just fall like this. Guo Yao is still waiting for me, and the truth is still ahead!" Li An roared in his heart, his eyes suddenly burning as if two flames were burning within them.

Just then, the power within Li An seemed to be activated by some mysterious force, and his aura instantly became incredibly strong. A surge of black energy erupted from his body, swirling around him and forming a black shield that blocked Li Na's attacks one by one.

“What… what kind of power is this?” Li Na looked at Li An in shock. She had never seen such a strange and powerful energy.

Li An didn't answer, only staring coldly at Li Na, his eyes filled with determination and killing intent. He took a deep breath, then charged forward, black energy forming a huge wing behind him, like a dark eagle soaring into the sky.

Li An's speed was extreme, almost like a black lightning bolt, and he arrived in front of Li Na in an instant. He clenched his fists tightly, and black energy gathered on his fists, as if to tear space apart.

"Break!" Li An roared, his fists slamming out. Black energy waves surged forth like a tsunami, colliding with Li Na's sword light and creating a deafening roar.

Chapter 443 Powerful Enemy

The energy wave spread outwards, blasting back the surrounding guards. Li Na was also forced back several steps by this powerful force, her face turning deathly pale.

"Who...who are you?" Li Na looked at Li An in horror; she had never seen such a powerful enemy.

Li An didn't answer, only smiled coldly, his eyes filled with the pride of a victor. He charged forward again, his black wings unfurling behind him like a dark eagle poised to strike, ready to deliver the final blow to Li Na.

However, at this crucial moment, Li Na suddenly vanished. Li An was startled, then cautiously looked around. Just then, a silver light flashed from behind, moving with astonishing speed.

Li An reacted extremely quickly, shifting his body to the side and narrowly dodging the attack. He looked back and saw that Li Na had appeared behind him at some point, her longsword gleaming coldly.

"You think you've won? You're far from it!" Li Na sneered and launched another attack on Li An.

This time, she held back, each strike carrying the power to be fatal. Li An dared not be careless either, giving her all to counter Li Na's offensive. The two were once again locked in fierce combat.

Seeing this, Guo Yao was extremely anxious. She knew she could no longer stand idly by and had to provide support to Li An as soon as possible.

She took a deep breath, her hands rapidly forming hand seals, and she chanted incantations. As her incantation rang out, the surrounding air began to distort, as if controlled by some mysterious force.

"Freeze her!" Guo Yao shouted, and a pink light shot out from her hand, instantly freezing Li Na in place.

Taking advantage of the opportunity, Li An launched a counterattack, unleashing a torrent of black energy waves upon Li Na. Although Li Na fought valiantly, she was ultimately defeated by Guo Yao's restraints and Li An's relentless assault.

With a soft "pfft!", Li Na's sword was knocked away by Li An's attack, and she herself was seriously injured, spitting out blood and collapsing to the ground.

The guards of Sky City were horrified at the sight. They had never seen such a powerful enemy, and they never expected that Captain Li Na would be defeated by Li An and Guo Yao.

"Withdraw!" a guard shouted, leading the others to quickly retreat.

Li An and Guo Yao exchanged a smile, knowing that they had finally succeeded in breaking through the first line of defense of Sky City.

The two continued deeper into the Sky City, walking along winding corridors. The surrounding walls were carved with various mysterious patterns and runes, emitting a faint light, making the entire castle appear even more enigmatic.

"Li An, where do you think the Ancient Key is hidden?" Guo Yao asked softly, her voice filled with a hint of nervousness and anticipation.

Li An shook his head: "I don't know either, but now that we're here, we have to find it."

The two continued onward, occasionally encountering patrolling guards. But having learned from their previous experience, they quickly resolved these troubles and continued deeper into the castle.

Just as they were about to reach the heart of the castle, a tremendous crisis suddenly struck. A black beam of light shot down from the sky, instantly engulfing the entire castle.

"What is this?" Li An was shocked; he had never seen such terrifying power.

Chapter 444 Fell into a trap!

Guo Yao also showed a look of horror: "Oh no, we've fallen into a trap! This must be a trap set by Sky City!"

The black beam of light contained immense energy, making it difficult for Li An and Guo Yao to breathe. They struggled with all their might against this force, but still could not break free from its restraints.

Just then, a deep voice sounded in my ear: "Those who trespass on Sky City will be punished."

Li An and Guo Yao looked up and saw a mysterious man dressed in black robes standing before them. His eyes were as deep as an abyss, seemingly capable of devouring everything.

"Who are you?" Li An asked with difficulty.

The mysterious man sneered: "I am the guardian of Sky City, and also the end point of your journey."

After the mysterious man finished speaking, he waved his hands, and the black beam of light instantly intensified in power. Li An and Guo Yao felt a powerful force binding them tightly, as if it were squeezing out their souls.

"Guo Yao, hold on!" Li An gritted his teeth and tried his best to resist the force.

Guo Yao responded with all her might, "Li An, I won't give up!"

However, as time passed, their strength gradually waned, and they began to feel powerless. The black beam of light, like an invisible giant net, bound them tightly, preventing them from escaping.

"It seems you've reached your limit." The mysterious man looked at Li An and Guo Yao, who were struggling in pain, and a smug smile appeared on his face.

At this critical moment of life and death, an unprecedented strength suddenly surged within Li An. He recalled the hardships and difficulties he had overcome, and the moments he had shared with Guo Yao.

"I can't give up like this. I still have an unfinished mission, and there are people waiting for me." Li An roared in his heart, his eyes burning with passion once again.

Just then, the power within him seemed to be activated by some mysterious force, erupting instantly. The black beam of light began to crack under his efforts, as if it would shatter at any moment.

Upon seeing this, the mysterious man's expression changed drastically: "This... how is this possible?"

Li An didn't answer, only stared coldly at him, his eyes filled with determination and killing intent. He took a deep breath, then charged forward, black energy forming a huge wing behind him, like a dark eagle soaring into the sky.

0Request flowers

He clenched his fists tightly, black energy gathering on them as if to tear space apart. Then, he roared, "Break!"

As they drew ever closer to the legendary "Ancient Key," Li An and Guo Yao's emotions grew increasingly complex. They traversed intricate, labyrinthine corridors, each step seemingly treading on the dust of history. Sky City, this ancient ruin floating above the clouds, concealed countless secrets, and the "Ancient Key" held the key to unlocking all these mysteries.

Li An gripped the exploration lamp tightly, its light flickering in the distorted space, casting dappled shadows. Guo Yao pressed close to Li An, her fingers gently resting on his shoulder, conveying a silent sense of courage and reliance.

"Li An, what... what's going on?" Guo Yao's voice trembled slightly, and fear flickered in her eyes.

Li An frowned, looking around. The space seemed to be being kneaded by an invisible hand, each breath accompanied by a slight distortion. "I don't know, but some ancient restriction has definitely been triggered. Stay calm, we need to find a way out."

Chapter 445 Coming In

Suddenly, a powerful force pressed in from all directions, the air seemed to freeze, and breathing became difficult. Guo Yao abruptly hugged Li An's arm, pressing her body tightly against him, her eyes filled with terror.

"Li An, I'm scared..."

Li An took a deep breath, trying to calm his inner turmoil. He knew that as an explorer, he had to remain calm. "Don't be afraid, I'm here." His voice was firm yet gentle, attempting to offer Guo Yao some comfort.

He quickly scanned his surroundings, searching for possible clues. The flowing runes seemed to be speaking an ancient language, and countless records from ancient texts flashed through Li An's mind, trying to glean a clue as to how to decipher them.

Li An's eyes sharpened as he began to recall his experiences in the ancient ruins, his mind racing with knowledge about restrictions and seals.

“I remember that ancient texts in the mysterious seas mention that ancient restrictions are often connected to the elements of heaven and earth. Finding the nodes where the elements flow might be the key to breaking through them.” Li An’s voice was deep and focused as he traced the path of the elements in the air.

Guo Yao watched Li An quietly from the side. She had never seen him so focused before, and a strange sense of admiration and trust welled up in her heart. She gently stroked Li An's back, her movements soft yet firm, as if silently telling him, "I believe in you."

Feeling Guo Yao's love, Li An felt a warm current surge in his heart, and this trust strengthened his resolve. After some thought, he finally discovered a weak point in the restriction—a tiny gap hidden within the flowing runes.

"Guo Yao, are you ready? We're going to take this risk." Li An's eyes flashed with determination.

Guo Yao nodded, her eyes filled with determination: "No matter what happens, I will be with you."

Li An took a deep breath, gathering all his strength, preparing to launch an attack. He charged forward, the exploration lamp in his hand transforming into a dazzling beam of light, striking directly at that weak point.

However, the instant he made his move, an even more powerful counterforce surged forth like a tidal wave, accompanied by a deafening roar. Li An felt an irresistible force blast him away, his body flying backward like a kite with a broken string.

"Li An!" Guo Yao exclaimed. She rushed forward without thinking and caught Li An's body as he was about to hit the ground. Li An crashed heavily into her arms, and the two of them fell to the ground together.

Li An coughed up blood, his face ashen. He forced himself to look up at Guo Yao, his eyes filled with apology and worry. "I'm fine, don't worry..."

Guo Yao's eyes instantly welled up with tears. She hugged Li An tightly, her voice choked with emotion, "Don't say anything, let's get out of here first."

However, just then, they discovered that not far away, the "Ancient Key" lay quietly on a protruding rock, shimmering with an alluring light, as if beckoning them. But the surrounding danger had not dissipated; instead, it had become even more violent because of their touch.

"Li An, what should we do?" Guo Yao's voice carried a hint of despair.

Li An struggled to his feet, his gaze resolute: "We cannot give up. The Ancient Key is right before us. We must find a way to protect it and activate it."

Li An supported Guo Yao as they walked laboriously towards the "Ancient Key." Each step felt like stepping on a knife's edge, excruciatingly painful. Yet, an inextinguishable flame burned in their eyes—a yearning for the unknown, a relentless pursuit of victory.

Chapter 446 The Only Way Out

"Li An, look!" Guo Yao suddenly pointed ahead, a glimmer of hope flashing in her eyes.

Li An looked in the direction she was pointing and saw a faint light flickering in the darkness not far ahead. It was a hidden passage, which seemed to be their only way out.

"We need to hurry and leave before the barrier is completely sealed," Li An said, his voice tinged with urgency.

They quickened their pace, traversing the collapsed area with extreme caution, each step carefully chosen to avoid triggering further danger. Finally, they arrived at the hidden passage.

Li An glanced back at the "Ancient Key," his eyes filled with reluctance. "We will definitely come back, Ancient Key."

They slipped into the passage, the crumbling Sky City behind them, and unknown darkness ahead. The passage was narrow and winding, forcing them to move slowly sideways. The air was thick with a damp, musty smell, sending a chill down their spines.

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