Rise of the Otherworld.

The deep roar emanated from behind the stone door, like a roar from the abyss, shaking everyone's heart. The sound echoed in the narrow passage, making everyone's ears buzz, and an invisible pressure instantly enveloped everyone's heart.

"What the hell is that back there?" the mysterious man asked, his voice trembling, his face filled with fear. His eyes widened, and he involuntarily took a few steps back.

Zhang Hao took a deep breath and forced himself to calm down. "No matter what it is, we must face it." His voice was firm and powerful, giving everyone a sense of courage and confidence. He gripped the sword tightly in his hand, and the blade gleamed coldly in the dim light.

Everyone gathered around the stone door, carefully searching for any possible mechanism. The old man's eyes scanned the stone door, not missing a single detail. Suddenly, his eyes lit up.

"Look here, there seems to be a groove." The old man pointed to an inconspicuous spot below the stone door and said, his voice tinged with excitement and anticipation.

Lingyu leaned over to take a look and said, "The shape of this groove is a bit like the jade pendant we got before." A glimmer of hope flashed in her eyes.

Zhang Hao quickly pulled the jade pendant from his pocket and placed it into the groove. However, the stone gate showed no reaction. Disappointment spread throughout the crowd.

"Isn't this it?" The woman looked puzzled. Her brows knitted tightly together as her eyes searched the stone door again.

Just when everyone was confused, the little girl said timidly: "Do I need to turn the jade pendant?" Her voice was very low, but it was particularly clear in the silent environment.

Zhang Hao heard this and gently turned the jade pendant. With a loud rumble, the stone gate slowly rose. A strong, fishy odor assaulted the air, forcing everyone to cover their mouths and noses. The smell was pungent and unpleasant, like a mixture of rotting corpses and foul pus.

When the smoke cleared, a gigantic, two-headed monster appeared before their eyes. Its body was as massive as a mountain, its two heads ferocious and terrifying. One head had sharp fangs, while the other spewed forth blazing flames. Its eyes were like flaming balls of fire, flashing with a ferocious light.

"Everyone be careful!" Zhang Hao shouted loudly, brandishing his sword and rushing towards the monster. His figure was like a flash of lightning, and he was in front of the monster in an instant.

The woman immediately cast her magic, and beams of light shot towards the monster. Those beams were as bright as shooting stars, carrying with them a powerful force.

The monster roared, waving its huge claws, which were like sharp blades, and pounced on everyone.

Zhang Hao dodged the monster's attacks nimbly, his body like a leaf in the wind, lightly avoiding the monster's attacks again and again. He took the opportunity to leave sword marks on the monster, but those sword marks seemed insignificant to the monster's huge body.

The old man continued to cast spells to protect Zhang Hao and the others. A faint light enveloped them, forming a solid shield.

Lingyu threw out a talisman, trying to interfere with the monster's movements. The talisman transformed into golden rays of light in the air and flew towards the monster.

But the monster was so powerful that the attacks didn't seem to cause much damage to it. Its roars became more intense and its attacks became more ferocious.

"This won't work. We have to find its weakness!" Zhang Hao shouted, his voice tinged with anxiety.

Just then, the little girl discovered a lighter scale on the monster's belly.

"Maybe that's the weakness!" the little girl cried. Her voice was childish but full of determination.

Zhang Hao understood what he was trying to do and flew up to stab the monster's belly. His figure drew an arc in the air, and his sword pointed directly at the monster's weak spot.

The monster sensed Zhang Hao's intention and tried desperately to stop him. It twisted its body, and both heads spewed flames and venom at the same time.

At this critical moment, the mysterious man used all his strength to attract the monster's attention. He rushed towards the monster and kept swinging his dagger. Although his attacks caused almost no damage to the monster, he successfully diverted the monster's attention away from Zhang Hao.

Zhang Hao seized the opportunity and successfully stabbed the monster's weak spot. The monster screamed and fell to the ground. Its body twitched continuously, and blood gushed out from the wound.

Everyone breathed a sigh of relief and collapsed to the ground.

"Finally solved," the woman said, her voice full of fatigue.

However, before they could rest for long, a strange sound suddenly came from all around...