Outside the forbidden area of the spirit race, the sun was shining, the warmth was flowing in the air, and the birds in the forest of all spirits were singing happily, as if they were also celebrating the lifting of the thousand-year curse of the spirit race. The spirit race members surrounded Duan Litang, Su Xueli and Tang Xiaotang, their eyes full of gratitude and joy, their cheers and blessings intertwined into a song of praise. However, Duan Litang's mind had already drifted far away, his brows were furrowed, and his worries about Ling Xian'er and Bai Wushuang who stayed in the demon domain to fight against the dark forces became stronger.

  "Xue Li, Xiao Tang, we have to rush back to the demon realm as soon as possible. I always feel that Ling Xian'er and Bai Wushuang are in a bad situation." Duan Litang's voice was low and anxious. Su Xue Li and Tang Xiao Tang looked at each other and nodded. They were also worried about their companions. The three of them said goodbye to the spirits who were trying to keep them, and used their skills to rush towards the demon realm like three streams of light.

  The journey back to the Demon Realm was long and arduous. The three of them kept on going, consuming a huge amount of spiritual energy, but no one had the slightest intention of stopping. Finally, they stepped into the land of the Demon Realm, but the scene before them made them feel depressed. The originally prosperous and lively border town was now in ruins, with collapsed houses and the pungent smell of gunpowder in the ruins. Among the broken walls, the cries and groans of the people in the Demon Realm were intertwined, a miserable scene.

  "This dark force is so cruel!" Su Xueli gritted her teeth, her beautiful eyes full of anger and heartache. Duan Litang clenched his fists, his knuckles turned white, and the power of the blood contract was slightly agitated in his body. He suppressed the anger in his heart and said, "Let's go to the palace first to see how Ling Xian'er and the others are doing."

  The three quickened their pace and rushed to the Demon Realm Palace. The atmosphere in the palace was solemn, and the guards were in a hurry. When they saw Duan Litang and others, they immediately informed them. The King of the Demon Realm quickly received them. He looked haggard and his eyes were bloodshot, obviously because he was overworked in the war.

  "Your Majesty, how are Ling Xian'er and Princess Bai Wushuang?" Duan Litang asked anxiously.

  The King of the Demon Realm sighed and said, "They led the soldiers of the Demon Realm to fight hard and temporarily blocked the attack of the dark forces. But the dark forces continue to send more troops, and the situation is still very critical. Moreover, we found that this dark force seems to know the terrain and defense deployment of the Demon Realm very well. I suspect there are spies inside."

  Duan Litang's heart trembled, and he exchanged glances with Su Xueli and Tang Xiaotang. At this time, a guard rushed in and reported: "Your Majesty, there is news from the front that Princess Ling Xian'er and Princess Bai Wushuang are in trouble in the fierce battle with the dark forces."

  "What!" Duan Litang exclaimed, "Let's go support them right now!"

  The King of the Demon Realm nodded and said, "Okay, I will send reinforcements immediately. We must repel the dark forces!"

  Duan Litang, Su Xueli and Tang Xiaotang immediately rushed to the battlefield. The battlefield was filled with smoke and shouts of killing. Ling Xian'er and Bai Wushuang were leading the soldiers of the Demon Realm to fight a desperate battle with the dark forces. The ice sword in Ling Xian'er's hand flashed with cold light. Every time she swung it, she could bring up a piece of ice and freeze a large number of soldiers of the dark forces; Bai Wushuang cast the magic of the Demon Realm, and the fox fire burned fiercely, illuminating the dark corners of the battlefield. However, the dark forces were numerous and new forces were constantly joining, and they gradually fell into a hard battle.

  Duan Litang saw this and shouted: "Ling Xian'er, Bai Wushuang, we are here!" He exerted the powerful power of the blood covenant, and the blood sword shone brightly, like a long blood-colored rainbow, rushing into the camp of the dark forces. Wherever he went, the dark forces fell one after another. Su Xueli and Tang Xiaotang followed closely behind. Su Xueli used the Lingxian sword technique, and the sword energy was crisscrossed to repel the enemy; Tang Xiaotang commanded the spirit butterfly to harass and attack the dark forces. With their support, the morale of the demon domain soldiers was greatly boosted and they began to fight back.

  After a fierce battle, the dark forces finally couldn't hold out and began to retreat. Duan Litang and others didn't pursue them, as they were worried that the dark forces would ambush them. They returned to the palace and rested for a while.

  During the rest period, Duan Litang had been thinking about how to completely resolve the crisis in the demon realm. He remembered that when he was studying the demon pattern jade and jade slips, he had seen a record about the Wanjian Pavilion in an ancient book. It is said that the Wanjian Pavilion hides many secrets about the Ten Thousand Worlds, and perhaps there, they can find a way to defeat the dark forces.

  So Duan Litang told everyone his idea. Ling Xian'er, Bai Wushuang, Su Xueli and Tang Xiaotang all agreed. "Okay, then we'll go to the Wanjian Pavilion!" Duan Litang said firmly.

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  With the blessing of the King of the Demon Realm, they set out on their journey to the Wanjian Pavilion. After several days of trekking, they finally arrived at the Wanjian Pavilion. The Wanjian Pavilion still stood tall and majestic, exuding a mysterious atmosphere. When they walked into the Wanjian Pavilion, they found that it was a little different from the last time they came. There was a strange fluctuation in the pavilion, as if responding to their arrival.

  They walked up the stairs, floor by floor. Each floor was filled with various precious magic weapons and ancient books, but they did not stay for too long and went straight to the top floor. When they arrived at the top floor, they found a huge stone platform in the center of the top floor. There were three grooves on the stone platform, emitting a faint light.

  Duan Litang walked forward and carefully observed the stone platform. Suddenly, he found that the three fragments on his body, which were obtained from the spirit race, the fairyland and the demonland, seemed to have some connection with the three grooves. He tried to put the three fragments into the grooves. As soon as he put them in, the whole stone platform glowed brightly and a powerful force surged out of it.

  At the same time, Duan Litang's blood sword suddenly came out of its sheath and floated in the air. The blood sword flashed and slowly unfolded, forming a huge map of the universe. On the map, various mountains, rivers, cities and villages were clearly visible, and in the center of the map, there was a mark that read "The core of the blood contract is in the ancient sacred mountain, and the blood of the saint of the three realms is required as a guide."

  Everyone was stunned when they saw this scene. Su Xueli's Lingxian Sword, Ling Xian'er's Bingxin Lamp, and Tang Xiaotang's Lingzu King Ring glowed at the same time, corresponding to the three red dots on the map.

  "What's going on?" Bai Wushuang asked in surprise.

  Duan Litang frowned, thought for a moment, and said: "It seems that this blood covenant core is closely related to us. Su Xueli, Ling Xian'er, Tang Xiaotang, you are important figures in the fairyland, the ice palace and the spirit race respectively. Perhaps you are the so-called three-world saints. And we need to go to the ancient sacred mountain and use the blood of the three of you as a guide to find the blood covenant core."

  Su Xueli nodded slightly: "No matter what, for the peace of the world, I am willing to give it a try."

  Ling Xian'er also said firmly: "I won't back down either."

  Tang Xiaotang clenched his fists: "Count me in!"

  Bai Wushuang looked at them with admiration in his eyes: "Then I will go with you too."

  At this moment, the Wanjian Pavilion suddenly shook violently. Everyone quickly stabilized their bodies and looked around vigilantly. From the walls of the Wanjian Pavilion, some ancient runes and pictures slowly emerged. The runes flashed with light, as if telling an ancient story. In the picture, it was a tragic war, and the various races in the Ten Thousand Worlds fought fiercely with a powerful dark force. In the end, the various races joined forces to seal the dark force under the Taigu Shenshan. And the power of the blood covenant is the key to sealing the dark force.

  "Could it be that the dark force we are facing now is the one that was sealed back then?" Su Xueli guessed.

  Duan Litang nodded: "It is very likely. It seems that we must find the core of the blood covenant as soon as possible and reseal the dark forces."

  The vibration of the Wanjian Pavilion became more and more intense, as if urging them on. The crowd did not dare to delay and immediately left the Wanjian Pavilion and headed towards the Taigu Divine Mountain. The Taigu Divine Mountain is located at the edge of the Ten Thousand Worlds. Legend has it that it was the place where the bones of the great god Pangu were formed when the world was first created, and it contains powerful power. The journey to the Taigu Divine Mountain was full of dangers. They crossed the barren desert, where the hot sand in the desert scraped their faces like a knife; crossed the turbulent river, where the water was so fast that it could wash people away at any time; and climbed over the steep mountains, where the rocks were jagged and one could fall into the abyss if not careful.

  While crossing the desert, they encountered a group of sand bandits. The bandits rode on huge sand beasts, holding sharp blades, with greed in their eyes. "Hand over all your property, or you won't be able to leave here alive!" the leading bandit shouted.

  Duan Litang snorted coldly: "You think you can stop us?" He used the power of the blood contract, swung the blood sword, and a blood-colored sword energy shot towards the sand bandits. The sand bandits hurriedly dodged, but a few unlucky ones were hit by the sword energy and fell down screaming. Su Xueli, Ling Xian'er and Tang Xiaotang also took action. Their spells and magic weapons were powerful and quickly repelled the sand bandits.

  When crossing the river, a huge water monster suddenly emerged from the river. The water monster was huge, more than ten meters long, and it opened its bloody mouth and rushed towards everyone. Ling Xian'er immediately cast an ice spell to freeze the river water around the water monster. The water monster was trapped in the ice and could not move. Everyone took the opportunity to quickly cross the river.

  When they were crossing the mountain range, a strong wind suddenly blew up from the mountain. The wind was howling, sand and rocks were flying, and it was hard to open your eyes. Duan Litang and others supported each other and moved forward with difficulty. Suddenly, a huge rock rolled down from the mountain and hit Tang Xiaotang. Duan Litang was quick to pull Tang Xiaotang away, and the huge rock hit the ground, splashing a cloud of dust.

  After a long and arduous journey, they finally arrived at the foot of the Taigu Divine Mountain. The Taigu Divine Mountain towered into the clouds, and the top of the mountain was shrouded in clouds and mist, exuding a mysterious and powerful atmosphere. At the foot of the mountain, there was a huge stone gate, which was engraved with ancient runes and patterns.

  Duan Litang walked forward and carefully observed the stone door. He found that the runes and patterns on the stone door were similar to the map of the myriad worlds unfolded by the blood sword and the pictures that emerged in the Myriad Sword Pavilion. He tried to inject spiritual power into the stone door, and the stone door vibrated slightly, making a low roar.

  "It seems that we have found the right place." Duan Litang said.

  Everyone took a deep breath and prepared to face the upcoming challenge. They knew that in this ancient sacred mountain, what awaited them would be unknown dangers and great tests. But for the sake of peace in the world, they were not afraid and resolutely walked towards the stone gate.