Forensic Doctor: Finding the Way Back to the Mystery of Ancient Realms

As the battle in the secret passage was about to break out, Xu Youran and Situ Han stood back to back, their eyes sharp, alert to the impending crisis. The sneer of the man in black echoed in the empty basement, and the air was filled with tension and uneasiness.

"You Ran, be careful!" Situ Han reminded in a low voice, while the gun in his hand was ready.

Xu Youran nodded, the flashlight in her hand trembling slightly, but it couldn't hide the determination in her eyes: "Si Tu, we must get rid of him as soon as possible, and then study the secret of this 'Heart of Shadow'."

The man in black suddenly attacked, his figure approaching like a ghost. A fierce fight unfolded in the dim basement, with whistling fists and the sound of weapons clashing.

After a hard fight, Xu Youran and Situ Han finally subdued the man in black. The man in black's mask slipped off, revealing a pale and unfamiliar face, but his eyes revealed a familiar hatred.

"Do you think you can stop the Shadow Society like this?" The man in black panted, a sneer appeared on his lips, "The real revenge has just begun."

Situ Han frowned, knowing that there was a bigger conspiracy waiting to be revealed. "Take him away, we need to dig out more information from him."

Back at the police station, Xu Youran and Situ Han immediately interrogated the man in black. However, the man in black was extremely stubborn and kept silent about any questions. Just when the interrogation reached a deadlock, Li Ming, a representative of the S City police, brought an unexpected news.

"Commander, we found new clues near the ruins of the old city." Li Ming looked solemn, "It seems to be the scene of another crime, which is strikingly similar to the sudden death case tonight."

Xu Youran and Situ Han looked at each other, and an ominous premonition came to their hearts. They immediately rushed to the scene, only to see a young woman lying in a pool of blood, her face distorted, and obviously in great pain.

The on-site investigation was quickly launched, and Xu Youran found that the woman had many small wounds on her body, which seemed to be caused by bites from some tiny creatures. She immediately thought of the ancient witchcraft and was shocked.

"This... is it a poisonous insect?" She turned to look at Situ Han, her eyes full of shock.

Situ Han was silent for a moment, then nodded in agreement. "It seems that we have to face a new challenge."

Afterwards, they began to question the victim's family and nearby residents, trying to get more information from them. An old woman said in a trembling voice: "This child has been acting mysterious recently, saying that he was participating in a 'rebirth ceremony', and then he became more and more abnormal."

"Rebirth ritual?" Xu Youran caught the key words and thought to herself, "This is probably related to the 'Shadow Society'."

In order to find out the truth, Xu Youran and Situ Han decided to sneak into the so-called "rebirth ceremony". They disguised themselves as ordinary citizens and sneaked into the hidden place where the ceremony was held.

The atmosphere at the ceremony was strange and smoky, with a group of people in black robes chanting in low voices around the central altar. Various strange props and herbs were placed on the altar, and a nauseating stench filled the air.

Suddenly, a rapid drumbeat sounded, and the people in black robes made way for them. An old man in black robes and with a gloomy face slowly walked up to the altar, holding a copper box covered with talismans in his hand.

"Finally... it's time to reap the rewards." The old man's hoarse voice echoed in the air. His eyes were as sharp as an eagle, as if he could see into people's hearts.

Xu Youran and Situ Han exchanged glances, knowing that they had to act at this moment. They quickly approached the altar, ready to seize the bronze box and reveal the secret behind it.

However, just when they were about to succeed, a group of black-robed men suddenly surrounded them. A fierce battle unfolded around the altar, and Xu Youran and Situ Han fought a desperate battle with the black-robed men with their extraordinary skills and wisdom.

After a hard fight, they finally repelled the black-robed man and seized the bronze box. But at this moment, the ground under the altar suddenly cracked, and a black smoke gushed out from the crack, accompanied by shrill cries and wails.

"Oh no! It's a poisonous insect!" Xu Youran exclaimed.

Black smoke quickly filled the entire scene, and countless poisonous insects poured out from the cracks and rushed towards Xu Youran and Situ Han. They fought hard, but the large number of poisonous insects and their strong toxicity soon put them in trouble.

At this critical moment, a dazzling light suddenly descended from the sky, sweeping away the black smoke and poisonous insects. A mysterious woman walked out of the light, holding a long sword and with a face as cold as frost.

"You shouldn't interfere in this matter." The mysterious woman said coldly, "But since you are here, stay."

Xu Youran and Situ Han looked at each other, knowing that today would not end peacefully. They tightly grasped their weapons, ready for the final battle.

However, the mysterious woman did not take action immediately, but slowly approached them, her eyes lingering on the "Heart of Shadow" for a moment. "This thing...you can't take it away."

Just as the two sides were on the verge of a fight, a sharp siren broke the silence. The S City police arrived in time and surrounded the scene. Seeing this, the mysterious woman snorted coldly, and her figure flashed and disappeared into the night, leaving only a string of sneers echoing in the night sky.

Although Xu Youran and Situ Han were shocked by the appearance and disappearance of the mysterious woman, they were more concerned about the truth that was about to be revealed. They quickly handed the bronze box to the police and arranged for someone to send the victim to the hospital for treatment.

"This is just the beginning." Situ Han looked at the direction where the mysterious woman left, his eyes determined, "We must thoroughly investigate the organization behind this 'rebirth ceremony' and their connection with the S City massacre thirty years ago."

Xu Youran nodded in agreement, but a sense of inexplicable worry welled up in her heart. "I always feel that all this is just the tip of the iceberg, and a bigger conspiracy is brewing in the dark."

Back at the police station, they immediately studied the bronze box and found an ancient secret book of witchcraft and a yellowed map hidden inside. Several key locations were marked on the map, which seemed to coincide with the locations where a series of bizarre cases occurred.

"It seems that we need to review all the cases and find the common points between them." Xu Youran suggested, "At the same time, we also need to investigate the identity of that mysterious woman."

Situ Han nodded and began to assign tasks. He dispatched police to search the locations marked on the map, and arranged for people to track the whereabouts of the mysterious woman. He and Xu Youran analyzed the secret book of Gu Shu in depth, trying to find the key to cracking Gu Shu.

In the following days, Xu Youran and Situ Han put almost all their energy into investigating the case. They visited many folk witch doctors and collected a lot of information and legends about witchcraft. At the same time, the police also received good news. They found the secret base of the "Shadow Society" in one of the locations and rescued a group of controlled victims.

However, as the investigation deepened, they gradually realized the complexity and danger of the case. The power behind the "Shadow Society" was much larger and more secretive than they had imagined, and it seemed to be inextricably linked to a secret organization during the Republic of China period.

Just when they are about to uncover the true face of the "Shadow Society", an unexpected news comes - an unprecedented poisonous insect case is about to happen in S City, and all this seems to be related to the mysterious woman.

Late at night, Xu Youran sat alone in the study, flipping through the secret book of witchcraft with a frown on her face. Suddenly, a quick knock on the door interrupted her thoughts.

"You Ran, there's an emergency!" Situ Han's voice sounded outside the door, with a hint of anxiety.

Xu Youran quickly opened the door and saw Situ Han with a serious expression, holding a secret letter in his hand. "I just received an anonymous letter saying that the Gu worm case will break out at midnight tomorrow night, and the location is..."

He paused and took a deep breath. "It's the old city of S City. It was the most prosperous area during the Republic of China period. It was also where the murder took place."