Lin Feng concentrated all his ice spirit power, conjuring an ice dragon on his spear. With a roar, the ice dragon pounced on the demonic beast. The Blood Shadow Sect woman wielded her curved saber with impenetrable speed, countless blood-red rays flying from the blade like hidden weapons towards the demonic beast.

Despite the combined attack of the three, the demonic beast showed no fear. A layer of black mist rose around it, quickly condensing into a massive shield that blocked both the ice dragon and the crimson light. The ice dragon crashed into the shield and shattered instantly, turning into countless ice shards scattered across the ground; the crimson light struck the shield, only creating sparks that did not cause any real damage to the demonic beast.

"This monster's defense is so strong, what should we do?" Lin Feng shouted anxiously. Su Ran frowned, knowing that this couldn't go on; they had to find the monster's weakness. While maintaining the "Ice and Snow Burial" spell, she carefully observed the monster's every move.

Suddenly, Su Ran noticed that every time the monster cast its shield, a scale on its forehead would flash with an exceptionally bright red light. A thought struck her, and she guessed that the scale might be the monster's weakness.

"Lin Feng, Blood Shadow Sect girl, listen to me!" Su Ran shouted, "This monster's weakness might be on that scale on its forehead. Let's concentrate our attack there!"

Upon hearing this, Lin Feng and the Blood Shadow Sect woman immediately changed their attack strategy. Lin Feng compressed the ice spirit power on his spear to its limit, the tip of the spear flashing with a dazzling blue light, shooting towards the monster's forehead like a meteor. The Blood Shadow Sect woman, on the other hand, used a secret technique of the Blood Shadow Sect, transforming into a streak of blood light, instantly appearing in front of the monster, her curved blade stabbing straight at the scale.

The demonic beast seemed to sense the danger, roaring angrily as it tried to evade the two's attacks. However, Su Ran's "Ice and Snow Burial" spell restricted its movements; its limbs were firmly bound by ice and snow, leaving it helpless to watch as Lin Feng and the Blood Shadow Sect woman's attacks drew closer.

Just as the spear and scimitar were about to pierce the scales, a black beam of light suddenly shot out from the beast's forehead, instantly striking Lin Feng and the Blood Shadow Sect woman. The two felt a powerful force strike them, their bodies flying backward like broken kites, crashing heavily to the ground.

"Lin Feng! The Blood Shadow Sect girl!" Su Ran was extremely anxious and rushed over to check on their injuries. Both Lin Feng and the Blood Shadow Sect girl were seriously injured, with blood trickling from the corners of their mouths and their faces as pale as paper.

"Senior sister, we're alright... Don't worry about us, keep attacking the monster..." Lin Feng said, forcing himself to endure the pain. Su Ran gritted her teeth, her heart filled with resentment. She knew that if they didn't deal with this monster quickly, all three of them would die here.

Su Ran stood up, a resolute glint in her eyes. She pushed the power of the Ice Spirit Heart to its limit, the icy aura around her growing increasingly dense, forming a massive vortex of ice and snow. Su Ran took a deep breath, gathering all her power in her hands, and unleashed the Ice Spirit Clan's most powerful forbidden spell—"Ice and Snow Annihilation Curse."

As Su Ran chanted, the vortex of ice and snow rapidly swept towards the demonic beast, freezing everything in its path. The demonic beast felt an unprecedented threat and struggled frantically, trying to break free from the ice and snow's restraints. But the power of the "Ice and Snow Annihilation Curse" was too great, and the demonic beast's struggles proved futile.

The icy vortex completely enveloped the demonic beast, compressing it relentlessly. The beast roared in agony within the vortex, its body gradually covered in ice and snow, leaving only its pair of venomous eyes visible.

Just as Su Ran thought he had succeeded, the demonic beast suddenly unleashed a powerful surge of dark energy. This dark energy, like a sharp blade, tore a gash in the icy vortex. The demonic beast broke free from the vortex; though its body was covered in wounds, its aura remained undiminished, instead becoming even more ferocious.

"Not good! This monster still has a trick up its sleeve!" Su Ran thought to herself, realizing the danger, and hurriedly prepared to cast another spell. However, because she had used a forbidden spell, her spiritual energy was exhausted, and her body was extremely weak. She was unable to gather enough spiritual energy for the time being.

Taking advantage of the opportunity, the monster pounced on Su Ran. It opened its blood-red maw, its sharp fangs gleaming coldly, and it looked like it was about to devour Su Ran.

At this critical moment, a golden light suddenly descended from the sky. Within the light, a mysterious old man dressed in a golden robe slowly emerged. In his hand, the old man held a golden staff, the tip of which was inlaid with a dazzling gem. The gem emitted a soft light, dispelling the surrounding darkness.

"You beast, how dare you be so insolent!" the old man roared, his voice echoing through the valley like a booming bell. He brandished his staff, and a golden beam of light shot towards the demonic beast. Sensing the old man's powerful aura, the demonic beast dared not take the blow head-on and hastily dodged to the side. The golden beam struck the ground, instantly creating a huge crater.

Taking advantage of the opportunity, Su Ran retreated to Lin Feng and the Blood Shadow Sect woman's side, panting heavily as she said, "This senior is..." Lin Feng

Lin Feng shook his head, indicating that he didn't know the mysterious old man either. The Blood Shadow Sect woman stared at the old man warily, not lowering her curved sword. After all, in this dangerous place, one couldn't easily trust anyone.

The mysterious old man confronted the demonic beast, his gaze piercing as he stared intently at it, chanting incantations. The gemstone on his staff shone brightly, and golden runes flew from it, swirling around the old man. The runes emanated a mysterious power, seemingly containing the ultimate truths of the universe.

The demonic beast seemed to sense the threat of the runes. It roared, and its black scales began to flash with an eerie red light once more. Black mist surged from its body, quickly condensing into sharp black claws that reached out to grab the old man.

The old man remained unmoved, and with a gentle wave of his staff, the golden runes swirling around him instantly transformed into a golden barrier. Black claws gripped the barrier, producing a sizzling sound, like a red-hot iron striking ice; the black claws quickly melted away.

Seeing this, the monster grew even more enraged. It stomped its four hooves on the ground, causing the entire valley to tremble. Suddenly, huge cracks appeared in the ground, spewing out black flames. The flames, carrying a nauseating stench, swept towards the old man and Su Ran's group.

The old man frowned slightly, raised his staff and pointed it to the sky, shouting, "Golden Light of Purification!" A golden sun appeared in the sky, its golden rays cascading down like a waterfall, instantly extinguishing the black flames. Wherever the golden light passed, darkness was swept away, and the valley was restored to light.

The demon beast knew it had encountered a formidable foe; a flicker of fear crossed its eyes, and it turned to flee. But the old man wouldn't let it go so easily. With a wave of his staff, a golden rope shot out from its tip, instantly binding the demon beast's limbs. The beast struggled desperately, but couldn't break free of the rope's restraints.

The old man walked step by step toward the demonic beast, leaving a golden footprint with each step. Reaching the beast, he coldly said, "You vile creature, you have wreaked havoc here for a long time; today is your death day!" With that, he plunged his staff into the ground, the jeweled light on the staff connecting with the golden footprints to form a massive golden magic circle.

The magic array shone brightly, and countless golden light swords rose from it, shooting towards the demonic beast. The beast let out a series of shrill screams as its body was gradually riddled with holes under the onslaught of the golden light swords. Finally, the beast collapsed helplessly to the ground, turning into a pool of black blood that dissipated into the air.

Having witnessed all of this, Su Ran and the other two were filled with awe for the old man's strength. Su Ran stepped forward and respectfully said, "Thank you for your help, senior. Otherwise, our lives would have been in grave danger today." Lin Feng and the Blood Shadow Sect woman also stepped forward to express their gratitude.

The old man smiled at them and said, "No need to be so polite. I was just passing by and saw you fighting this monster, so I stepped in to help. For someone so young to fight such a powerful beast to this extent is truly remarkable."

Su Ran asked curiously, "Senior, who are you? Why are you here?" The old man smiled and said, "I am just a wandering cultivator named Xuan Feng. This valley is the ruins of an ancient battlefield, where powerful demonic beasts often appear. Why have you come here?"

Su Ran then recounted in detail how they obtained the Ice Spirit Heart in the stone chamber, triggered a backlash from the restriction, and were teleported here via the rune array. Xuan Feng nodded slightly after listening: "I see. The Ice Spirit Heart is a sacred object of the Ice Spirit Clan, possessing immense power. However, this ancient battlefield ruin is fraught with danger. What are your plans next?"

Lin Feng said, "Senior, we want to leave here as soon as possible, but we don't know how to get out." Xuan Feng pondered for a moment and said, "There is a hidden passage in this valley that leads to the outside world, but the passage is full of traps and is very dangerous. If you trust me, I can take you out."

Su Ran and the other two exchanged glances, their eyes filled with trust. Su Ran said, "Then we'll have to trouble you, senior." Xuan Feng nodded and led them toward a secluded corner of the valley.

Along the way, Xuanfeng explained some of the history of the ancient battlefield ruins to them. It turned out that these ruins were once the battlefield of a great war between gods and demons, where countless gods and demons perished. After the great war, the place was sealed away, but as time passed, the seal gradually loosened, and some powerful demonic beasts began to breed there.

Before long, they arrived at a massive stone wall. Xuanfeng explored the wall for a while and found a hidden button. He pressed the button, and the stone wall slowly opened, revealing a deep passage. The passage was filled with an ancient aura, and the faint sounds of mechanisms operating could be heard.

Xuanfeng said, "Stay close to me and don't wander off. The mechanisms in this passage are extremely dangerous; a slight misstep could be fatal."