Me? I was transported into a book? And I became a vicious villain?

"Xiao Yichen!" Chu Mengmeng's shouts echoed in the silent space, but she received no response. She looked around anxiously. Thick smoke billowed, rubble was everywhere, and after the explosion, the originally magnificent underground palace was in ruins.

The guardian's old hand tightly grasped Chu Mengmeng's arm and said in a deep voice: "Child, calm down, he will be fine."

Chu Mengmeng's heart was beating fast, she forced herself to calm down, and carefully searched for Xiao Yichen's figure. Suddenly, her eyes focused, and in the ruins not far away, a familiar black figure came into view.

"Xiao Yichen!" Chu Mengmeng ran over, but after seeing Xiao Yichen's condition clearly, her heart sank.

Xiao Yichen was half-kneeling on the ground. His originally upright body now looked extremely fragile. His face was as pale as paper, with a shocking trace of blood at the corner of his mouth. The long sword in his hand had broken into two pieces and fell weakly to the side.

"Xiao Yichen, what's wrong with you?" Chu Mengmeng's voice trembled. She supported Xiao Yichen's shaky body, her heart full of worry and fear.

Xiao Yichen forced a smile and wanted to speak, but suddenly he spat out a mouthful of blood and then fell into a coma.

"Xiao Yichen!" Chu Mengmeng exclaimed, hugged Xiao Yichen tightly, and tears flowed uncontrollably.

At this moment, a burst of cold laughter came from all directions, making people shudder.

"Hahaha, this is so touching. It's a pity that you will soon be separated from each other by the Yin and Yang!"

Along with the voice, a figure in a black robe slowly walked out from the shadows. He was tall, his face hidden under the shadow of his hood, revealing only a pair of red eyes that flashed with a faint light, which made people shudder.

"Who are you?" Chu Mengmeng asked vigilantly. She could feel that the aura exuded by this person was much more powerful than the previous controller. He was like a demon from the abyss of hell, which made people feel fearful.

"Who am I? Hahaha, I am the 'leader of the unknown force' that you are talking about." The black-robed man said arrogantly, full of disdain. "You ants dare to destroy my plan. Today, I will make you pay for your stupidity!"

As soon as he finished speaking, the man in black robe launched an attack. His figure was as fast as lightning, and in the blink of an eye he came in front of Chu Mengmeng and Xiao Yichen, condensing a black energy ball in his hand, with a destructive aura, and smashed towards them fiercely.

"Be careful!" the guardian shouted. He tried to step forward to stop him, but was pushed back several steps by the powerful pressure released by the man in black robe and could not get close at all.

Chu Mengmeng hugged Xiao Yichen tightly and closed her eyes in despair. At this critical moment, a golden light suddenly appeared, covering them and blocking the attack of the man in black robe. The golden light gradually dissipated, and Chu Mengmeng was surprised to find that a translucent golden barrier appeared around herself and Xiao Yichen, isolating them from the outside world. The attack of the man in black robe fell on the barrier, causing ripples, but could not shake it at all.

“This is…” Chu Mengmeng was still in shock and turned to look at the guardian.

The guardian smiled weakly and said, "Child, this is my last bit of strength. I will use this artifact to protect you." He trembled and took out an ancient ring from his arms and handed it to Chu Mengmeng. "This ring is the ancient artifact 'Heart of Guardian'. Wear it, it can help you increase your strength, but remember, you have to pay a price to use it..."

Before the guardian could finish his words, the man in black interrupted him with wild laughter: "Hahaha, a dying struggle! You think you can stop me with just a broken ring?" He condensed the energy ball again and smashed it hard at the barrier.

Chu Mengmeng looked at the crumbling barrier, feeling extremely anxious. She took the ring and put it on her hand without hesitation. In an instant, a powerful force surged into her body, making her feel stronger than ever before.

“Come on!” Chu Mengmeng gently put Xiao Yichen on the ground, stood up, and looked at the man in black robe with a firm gaze, “Today, I will make you pay the price!”

After that, she did not retreat but rushed towards the man in black robe. The gem on the ring emitted a dazzling golden light, turning into a golden sword, the blade burning with blazing flames, emitting a suffocating pressure.

The man in black robe obviously didn't expect that Chu Mengmeng could burst out with such powerful strength. A hint of surprise flashed in his eyes, but it was quickly replaced by deeper greed.

"Good baby! It seems that there will be an unexpected gain today!" The man in black robe laughed wildly, waving a black energy ball and heading towards Chu Mengmeng.

For a moment, the golden and black forces collided violently, the explosion was deafening, and the entire underground space was shaking violently, as if it would collapse at any time.

Chu Mengmeng relied on the power of "guardian heart" to start a fierce battle with the black-robed man. Each of her swords contained the power to destroy the world, forcing the black-robed man to retreat again and again.

In repeated confrontations, Chu Mengmeng keenly discovered that although the man in black robe was powerful, his attack method was very simple, and he seemed to be deliberately hiding something.

"Could it be that he has some weakness?" Chu Mengmeng's heart moved, and she observed the black-robed man's every move more carefully, looking for his flaws...

 Chapter 66: Besieged on all sides, facing many difficulties

The golden sword light and the black energy ball collided continuously, and every confrontation seemed to tear the space apart. Chu Mengmeng gradually adapted to the power of the "Guardian Heart" in the fierce battle. She wielded the golden sword with fierce momentum, and each move was aimed at the vital points of the black-robed man.

The man in black robes obviously underestimated Chu Mengmeng's strength. He originally thought that he could easily defeat this group of young people and seize the artifact with his own strength. However, Chu Mengmeng's attacks broke through his defense again and again, making him exhausted.

"Damn it!" The man in black robe roared, and the black energy gathered into a huge energy ball in his hands, smashing towards Chu Mengmeng.

Chu Mengmeng didn't dare to take it head-on, she dodged the attack of the energy ball. At this moment, she keenly noticed that a wisp of black mist appeared on the chest of the man in black robe when he released the energy ball.

"Now!" Chu Mengmeng's heart moved, she knew that she had found the weakness of the man in black robe.

She stopped dodging and rushed towards the energy ball. The golden sword was burning with blazing flames, and with an unstoppable momentum, it pierced the chest of the man in black robe.

“You don’t know what you can do!” The man in black robe snorted coldly. A black energy ball formed a barrier in front of him, trying to block Chu Mengmeng’s attack.

However, Chu Mengmeng's attack seemed to have seen through his defense. The golden sword pierced through the energy ball and pierced into the black-robed man's chest without any hindrance.

"Ah!" The man in black robe let out a shrill scream. His body began to tremble violently. Black mist gushed out from the wound on his chest, enveloping him entirely.

"Not good!" Xiao Yichen, who had been paying attention to the battle, suddenly changed his expression. He felt an extremely unstable energy fluctuation coming from the black-robed man's body. "He is going to self-destruct!"

At this moment, the weak voice of the guardian sounded in Chu Mengmeng's ears: "Child, stop him quickly! The energy core of the device has gone out of control. If it explodes, the entire ruins will collapse!"

Chu Mengmeng was shocked. She didn't care about anything else and poured all her strength into the golden sword, violently stirring the wound on the black-robed man's chest.

"Ah!" The man in black robe let out a final roar, and his body swelled rapidly as if it would explode at any time.

"Mengmeng!" Xiao Yichen wanted to rush forward anxiously, but was held back tightly by Su Mubai and Lin Wan'er.

"Yi Chen, calm down! It's too dangerous to rush forward now!" Su Mubai shouted loudly.

At this moment, a golden light descended from the sky, covering Chu Mengmeng and the man in black robes. When the light faded, a woman in a golden robe appeared in front of everyone.

"You are..." Chu Mengmeng looked at the woman in front of her in surprise. She could feel the powerful aura emanating from her.

"I am the guardian spirit of this ruins," the woman smiled slightly, her eyes fell on the golden sword in Chu Mengmeng's hand, "It seems that you have been recognized by the 'Guardian's Heart'."

"Master Guardian Spirit, please save us! The energy core of the device has gone out of control and may explode at any time!" Chu Mengmeng said anxiously.

The guardian spirit frowned slightly. She looked at the black-robed man who had fallen into a coma, then looked at the device not far away that was flashing a dangerous red light, and said in a deep voice: "It's too late. The energy of the device can no longer be reversed. The only way is to seal it up..."

As soon as the guardian spirit finished speaking, the entire ruins began to shake violently, debris kept falling from the walls, and the red light of the device became more and more dazzling, as if it would explode at any time.

"It's too late to explain," the guardian spirit said solemnly. She quickly formed seals with her hands and muttered, "In my name, I will borrow the power of the ancients to seal it!"

Golden light burst out from the guardian spirit, instantly covering the entire ruins. Chu Mengmeng felt a powerful force enveloping her, and the golden sword in her hand also emitted a dazzling light, resonating with the power of the guardian spirit.

"Xiao Yichen, give me a hand!" Chu Mengmeng shouted and threw the golden sword in her hand into the air.

Xiao Yichen did not hesitate at all. He flew up and caught the golden sword. The spiritual power in his body surged wildly and was injected into the golden sword.

"Guardian's Heart, Seal!" The two shouted at the same time, and the golden sword turned into a golden light, shooting straight towards the core of the device.

"No!" The unconscious man in black robe let out an unwilling roar, but he was no longer able to stop it from happening.

The golden light and the red light intertwined, bursting out with dazzling light, and the entire ruins seemed to be torn apart by this powerful force. Chu Mengmeng and Xiao Yichen held each other's hands tightly, resisting this powerful impact.

After an unknown amount of time, the light gradually faded away, and the ruins returned to calm. The core of the device had disappeared, replaced by a golden ball of light, quietly suspended in the air.

"Huh..." Chu Mengmeng and Xiao Yichen breathed a sigh of relief at the same time and collapsed on the ground, feeling powerless all over.

“Thank you for your hard work, children,” the guardian spirit said weakly, “I have used the last of my strength to seal the core of the device deep in the ruins. It will not pose a threat in the short term.”

"Thank you, Lord Guardian Spirit," Chu Mengmeng said gratefully, "If it weren't for you, I'm afraid we would..."

"This is my duty," the guardian spirit shook his head, "but this seal cannot trap it forever. If you want to completely solve this hidden danger, you still need to find other ways..."

The words of the guardian spirit cast a shadow over Chu Mengmeng and Xiao Yichen's hearts. They knew that this battle was far from over...