Li Mu smiled slightly, took to the sky, and sped towards the distant sea realm.

Li Mu specially took out the Earth Element Spirit Ship, activated it, and saw spirit light sparkle around it, turning into a streak of flowing light, quickly slicing through the sky, heading towards the distant sea realm.

After traveling a thousand miles, Li Mu finally arrived at an unfamiliar sea realm where the sea and sky were one, with turbulent waves, and within a radius of two hundred miles, there were no High-Tier Cultivators or High-tier Demon Beasts.

Immediately, Li Mu released his Divine Sense, carefully exploring this sea realm, searching for a suitable island.

Soon after, Li Mu discovered an unfamiliar island in this strange sea realm. The island was not large, but the terrain was dangerous, surrounded by dense forests, giving a sense of mystery.

Li Mu decided to set up an Illusionary Array here to conceal the power of the Thunder Tribulation. He took out the Array Banner and Array Disc and began setting up on the island.

Li Mu’s movements were swift and precise, each array banner was precisely inserted into its designated position, and as the banners were inserted, the array’s power gradually manifested, soon enveloping the entire island in a layer of illusionary fog.

After setting up the Illusionary Array, Li Mu took out the Painting Realm Treasure Mansion and activated the Artifact Spirit, releasing the Ten Thousand Swords Mountain.

As soon as Ten Thousand Swords Mountain appeared, it stood majestically in the center of the island. Countless Flying Swords rushed out of its body, accompanied by sharp sword cries, swirling and dancing in the sky. These Flying Swords emitted sharp Sword Qi, as if they were about to split the entire sky open.

At the same time, the Thunder Tribulation in the heavens began to gather. The originally clear sky was suddenly covered by dark clouds, and the Thunder Tribulation roiled within, as if a group of angry giant beasts were roaring. They exuded a powerful aura of destruction, seemingly about to devour everything.

At this moment, the entire island was engulfed in an atmosphere of slaughter. Sword Qi and Thunder Tribulation intertwined, forming a breathtaking scene. Li Mu stood nearby, his eyes flashing with determination, fully aware that this was the inevitable path for Ten Thousand Swords Mountain to promote to a Tier Seven Dao Artifact through the Artifact Tribulation.

The dark clouds grew heavier, and the Thunder Tribulation more concentrated. They continued to gather in the sky, as if forming an endless Sea of Thunder. Each Thunder Tribulation held immense Power of Destruction, seemingly capable of destroying everything. However, Li Mu was confident in Ten Thousand Swords Mountain, believing that the Spirit Treasure, refined from Tier Seven Spiritual Materials and meteor Crystal Core, would safely endure this Artifact Tribulation.

The hardness of the meteor Crystal Core was beyond imagination. It had once withstood the Celestial Dao Thunder Punishment for the Painting Realm Treasure Mansion. With the meteor Crystal Core as the foundation of Ten Thousand Swords Mountain, it was an added advantage. Li Mu believed that, with the crystal core’s solidity and the sword Qi of Ten Thousand Swords Mountain, it could certainly withstand the strikes of the Thunder Tribulation.

However, Li Mu also harbored a hint of concern. Among the ten thousand Spirit Swords, most were Tier Five Bamboo Swords refined from Taiqing Moon Bamboo. Although these Bamboo Swords were among the best of many Spirit Swords, their endurance against Thunder Tribulation seemed somewhat fragile, leaving uncertainty about how many Spirit Swords would survive this Thunder Tribulation.

Yet, Li Mu understood that this was a necessary path for the growth of Ten Thousand Swords Mountain. Only through the baptism of tribulation could it transform into a Dao Artifact. He believed that after this Artifact Tribulation, Ten Thousand Swords Mountain would become stronger, becoming one of the most potent Magical Treasures in his possession.

Suddenly, a deafening rumble echoed across the heavens—"Boom!" The thunderous noise seemed to shake the entire sea realm, causing even the whole island to tremble. Amidst the shock, an immensely thick silver thunderbolt descended from the sky, like the fury of a Celestial God, carrying the power to destroy everything, fiercely striking down on the peak of Ten Thousand Swords Mountain.

Facing this sudden attack, the Artifact Spirit of Ten Thousand Swords Mountain showed no panic. It was prepared, controlling the ten thousand Spirit Swords to swiftly converge into a massive Sword Dragon in the void. This Sword Dragon exuded sharp Sword Qi, seeming capable of tearing through all obstacles.

At the Artifact Spirit’s command, the Sword Dragon charged fiercely at the silver thunderbolt, releasing endless Sword Qi. These Sword Qi became a substantial storm, carrying destructive power, clashing intensely with the thunderbolt.

Immediately, the entire island was enveloped in deafening roar as Sword Qi and thunderbolts intertwined, erupting in brilliant light, seemingly illuminating the entire sky. Each collision accompanied by earth-shaking sound, as if the whole world trembled.

In this fierce battle, Ten Thousand Swords Mountain showed no sign of waning, instead appearing as an indomitable warrior, its resilience and strength increasingly apparent. With each thunderbolt strike, the Sword Qi released by ten thousand Spirit Swords grew sharper, as if it too was honing and growing through the confrontation, even as the silver thunderbolts, despite their formidable Heaven and Earth Destruction power, gradually showed weakness against the endless Sword Qi of Ten Thousand Swords Mountain. The myriad of swords released sharp Sword Qi, repeatedly severing the Thunder Serpents, dispersing them into countless small electric sparks, finally vanishing into the air.

Li Mu hovered suspended at a distance, his eyes sparkling with amazement, watching intently the fierce battle between Ten Thousand Swords Mountain and the Thunder Tribulation. He couldn’t help but marvel at the resilience and unyielding nature of Ten Thousand Swords Mountain, witnessing its honing and growth through the confrontation with the thunderbolts. Yet, deep in his heart, there was also a concealed worry.

"Ten Thousand Swords Mountain, so strong and unyielding, it’s actually resisting the Thunder Tribulation head-on," Li Mu worried silently. The Celestial Dao Thunder was no ordinary force that could be resisted unyieldingly. Although Ten Thousand Swords Mountain had the indestructible meteor Crystal Core as its foundation, aided by ten thousand Spirit Swords, such hard clashes with the Thunder Tribulation might not end well.

The Celestial Dao Thunder is one of the most mysterious and dignified forces in the world. It’s not merely a natural occurrence of thunder and lightning, but a direct manifestation of the Heaven and Earth Laws. Each thunderbolt contains the will and power of the Heavens and Earth, safeguarding the natural balance and order, not allowing any living being to challenge it lightly.

Thus, any attempt to resist the Celestial Dao Thunder unyieldingly might be seen as a challenge to the Heaven and Earth Laws, provoking more sharp and fierce Thunder Tribulation counterattacks. Such counterattacks not only double in power but also carry unpredictable consequences, often leading the challenger to pay a heavy price.

Li Mu knew this well, so seeing Ten Thousand Swords Mountain repeatedly resist the Thunder Tribulation, he couldn’t help feeling concerned. Although Ten Thousand Swords Mountain had the indestructible meteor Crystal Core as its foundation, aided by ten thousand Spirit Swords, the force of the Celestial Dao Thunder was no ordinary force that could be easily countered. He feared that in this Thunder Tribulation, Ten Thousand Swords Mountain might suffer irreparable damage, or worse yet, be destroyed.

Sure enough, Li Mu’s concern soon turned into harsh reality. The Thunder Tribulation seemed angered by Ten Thousand Swords Mountain’s resistance, no longer content with a singular, straightforward attack. Suddenly, the thunderclouds roiled, the wind howled, the entire sky seemed to change color, the thunderclouds rapidly altering, continually gathering strength, and the originally silver thunderbolts began to deepen in color, gradually condensing into a rich purple hue.

Within this purple thunderbolt, the power reached an entirely new level, a strike more substantial and powerful than before gathered, as if all the heavens and earth’s power converged into this single blow.

With a deafening "Boom," the purple thunderbolt, like a giant dragon, launched a fatal strike towards Ten Thousand Swords Mountain.

Faced with this sudden attack, Ten Thousand Swords Mountain also displayed its unyielding nature. The Sword Dragon, composed of ten thousand Spirit Swords, rose up to meet the purple thunderbolt, each sword emitting dazzling Sword Light, attempting to resist the thunderbolt’s attack.

However, the power of the purple thunderbolt was overwhelmingly strong, the Sword Light emitted by the Sword Dragon shattered one after another under its assault. The Sword Dragon composed of ten thousand Spirit Swords disbanded under the thunderbolt’s impact, falling onto the Spirit Peak of Ten Thousand Swords Mountain.

"Crack... Crack..." With the disbandment of the Sword Dragon, ten thousand Spirit Swords fell one by one onto the Spirit Peak of Ten Thousand Swords Mountain, emitting crisp sounds.

Even though the Sword Dragon disbanded, the ten thousand Spirit Swords were not completely destroyed. They still emitted sharp Sword Qi, attempting to unite with the main body of Ten Thousand Swords Mountain to resist the thunderbolt. However, the energy of the purple thunderbolt seemed endless, each strike shaking Ten Thousand Swords Mountain intensely, as if it might be completely destroyed at any moment.

Li Mu watched the scene unfold, his heart filled with anxiety. He knew that if things continued as they were, Ten Thousand Swords Mountain might truly be unable to withstand the endless power of the Thunder Tribulation.