Rise of the Otherworld.

Just as the black flames were about to engulf everyone, a powerful force suddenly erupted from the core, forming a transparent shield that blocked the flames. The shield was like a layer of tough crystal wall, emitting a soft yet firm light. The black flames collided with it, splashing countless sparks, but could not penetrate its defense.

Everyone opened their eyes in surprise, feeling the powerful protective force coming from the core. Their eyes were filled with hope and gratitude, as if travelers who had been lost in the darkness for a long time had finally seen the light.

Zhang Hao looked at the core, a surge of hope in his heart: "It seems that our communication with the core has worked!" His voice trembled slightly with excitement, and the sword in his hand was still tightly grasped, as if ready to meet new challenges at any time.

The woman showed a hint of relief on her face: "But how long can this power last? We must find a way to completely eliminate these demons as soon as possible." There was worry in her eyes. The fierce battle she had just experienced made her deeply aware of the power and danger of demons.

The old man frowned, thinking about countermeasures: "Perhaps we can use the power of the core to seal these cracks and prevent the appearance of the demons." His voice was steady and powerful. Although his body was exhausted, the light of wisdom still flashed in his eyes.

The herbalist widened his eyes: "Then what should we do? I don't have any idea." His face was full of confusion and fear, but when he saw the determined eyes of everyone, he felt more courage in his heart.

The little girl closed her eyes again and used her heart to feel the power fluctuations of the core: "I seem to be able to feel the power of the core guiding us." Her voice was soft and ethereal, as if she had some special connection with the core.

So, led by the little girl, the group approached the core. As the distance shortened, the light emanating from the core grew stronger, illuminating the surroundings like daylight. The light was warm and powerful, bringing a sense of comfort to their weary bodies and minds.

The black-robed figure was no longer silent. He formed seals with his hands, attempting to channel the power of his core. A look of concentration crossed his face, and magic surged around him, echoing the power of his core.

With everyone's combined efforts, the core's power gradually gathered in their hands. That power was like a surging torrent, surging and powerful, causing their arms to tremble slightly.

Zhang Hao shouted, "Everyone, come together and inject this power into the crack!" His voice was like a battle horn, inspiring everyone.

Everyone unleashed their own strength, merging it with the power of the core, and blasted towards the crack. The light instantly illuminated the entire space, and the powerful energy fluctuations caused the air to distort.

The moment the force touched the crack, it slowly closed, as if being stitched together by an invisible hand, and the aura of darkness gradually weakened.

However, the demons refused to be sealed away and struggled even more frantically. A massive demon half-peeked out from the crack, claws extended, and lunged at the crowd. Those claws made a sharp, whistling sound, as if they could tear through anything.

"Be careful!" The woman hurriedly cast a spell, forming a barrier. The barrier flashed with colorful light, trying to block the demon's attack.

But the demon's power was too great, and the barrier shattered instantly. The woman was thrown back by the recoil, and blood spurted out of her mouth.

At this critical moment, the core erupted with powerful light again, repelling the demon. The light was like a flash of lightning, directly striking the demon's body. The demon roared in pain and retreated into the crack.

The crack finally closed completely, and the demon's roar gradually faded. The entire space returned to silence, with only the heavy breathing of the crowd remaining.

Everyone collapsed to the ground exhausted, gasping for breath. Their bodies had reached their limit, every cell expressing exhaustion.

"It's finally over..." the herbalist said weakly. He lay on the ground, looking at the ceiling, his eyes filled with relief at having survived.

But before they could relax for long, the light in the core suddenly became unstable. The light flickered, sometimes brighter and sometimes dimmed, as if struggling with something.

"What's going on?" Zhang Hao struggled to stand up and looked at the core vigilantly.

The woman also stood up shakily: "Is there any more danger?"

The old man's face was solemn: "Not good, the power of this core may be out of control!"

Just when everyone was at a loss, the core emitted a strong wave of energy, knocking everyone away again...