At the Ice Disaster Rift, the Wind Dragon Breathless Slash released by Lu Heng had already exceeded the skill tier, advancing to Wind Dragon Breathless Slash LV3. According to what Terres said earlier, once you reach the third rank of Wind Dragon Breathless Slash, you can learn the final ultimate technique. On the northern cliff of Kolos City, the north wind blew the falling leaves, adding a touch of cold solemnity to the air. Terres held a memorial medal in his hand, which was a memorial from Xiling City, brought back from the Treasure Cave of the Frost Bone Dragon. On the medal, three Elf Elders’ images are engraved. These three Elf Elders are the commanders of the Elf Clan’s Anti-Demon Alliance Army. The Elf Clan’s Anti-Demon Alliance Army began seven hundred years ago. In the early stages of the Abyss invasion, elves scattered across the Queldorei Continent united to form an Anti-Demon Alliance Army. It was due to this Anti-Demon Alliance Army that the elves were able to persist through several centuries of Abyss invasion. Until three hundred years ago, the last commander of the Elf Clan’s Anti-Demon Coalition Army passed away, forcing the elves to abandon Xiling City. On this medal, the elf on the left is named Santos, the previous generation Elf Sword Saint of the Elf Clan and Terres’ teacher. Terres rubbed the patterns on the medal with his thumb, falling into deep reflection. Lu Heng stood behind him for a long time, not knowing how much time had passed before he asked, "My Wind Dragon Breathless Slash has already reached the third rank, can I learn the third ultimate technique now?" Upon hearing this, Terres couldn’t help but show a faint smile and said, "Three hundred years have passed, and it’s as if time has returned to the starting point." Lu Heng didn’t understand what he meant by that, so he asked, "What starting point?" Terres raised the medal towards the sunlight, allowing its silvery surface to reflect a bright glow: "At that time I asked my teacher the same question. He answered, saying when he returned from the Moon Well in the Heath Mountain Range, he would teach me the third sword skill. "It’s just... he never came back; that meeting turned out to be the last." Lu Heng was taken aback and asked, "So is there no third move?" Terres shook his head: "There is, but the third move was not taught by my teacher but was practiced in a hundred years, traveling across the continent and fighting demons countless times." The reason he could master the third sword skill was because during this process, he became the new generation Elf Sword Saint of the Elf Clan. Actually, Lu Heng knew Terres had a third move, but no human could learn it in the previous era. In the rumors, some had seen Terres’ third move, a powerful sword technique capable of infinite traversal, cutting through space. Since no one could learn this move in the previous era, Lu Heng was unsure if he was qualified. Terres fell into memories once more: "Teaching it to you now will not make you master it before the Bone Sovereign attacks; for the safety of the Elf Clan, it should be taught after the battle, but..." He feared history would repeat itself. Three hundred years ago, his teacher, Elf Sword Saint Santos, planned to return after the Moon Well crisis in the Heath Mountain Range to teach him the third sword skill. However, his teacher never came back from that disaster. Three hundred years have passed, and it’s as if everything has cycled back to the starting point. What his teacher experienced once again happened to him. He feared he couldn’t overcome this calamity, and if he was going to die on the battlefield like his teacher, then his third sword technique would be lost forever, just like his teacher’s. Terres considered for a long time and said, "I won’t wait anymore; I fear there won’t be an opportunity to teach you the third move later, come with me." With that, he leaped skyward, riding the wind and heading southwest. Lu Heng hurriedly performed Wind God Step to follow. The two flew across the ground like two lightning bolts, shooting towards Thunder Valley. Three hours later, the two arrived at Thunder Valley. It was nighttime by then, but occasional lightning in Thunder Valley illuminated the valley to a visible level. Coming into the valley, Terres pointed at a cluster of dark purple demon creatures hidden within and asked, "Do you know what those are?" "Void Shadow Demon." Lu Heng recognized the demon creatures. Void Shadow Demon is a branch of Shadow Demon but generally regarded as higher rank Shadow Demon. Because Void Shadow Demon not only wields Shadow Energy but also controls Void Energy, making it stronger than Shadow Demon. However, Void Shadow Demon’s population is very small, so these demon creatures have not developed into a large group, unlike the numerous Shadow Demons. Terres then asked, "Do you know what abilities Void Shadow Demons have?" Lu Heng, hearing this question, already thought of the key to the problem: "Void Shadow Demons can traverse the void multiple times, performing space movement." In fact, even normal Shadow Demons possess strong space movement capabilities. Last time in the Sea Demon World, the Shadow Race Great Demon Helmer encountered by Lu Heng had the ability for multiple space movements. In terms of space movement ability, Void Shadow Demon is stronger than ordinary Shadow Demon. Combining with the rumors about Terres’ third sword technique in his memory, it’s clear that the third sword technique is related to Void Shadow Demon. Because the rumored Terres’ third sword technique can cut through space and move infinitely. "Is the third sword technique related to Void Shadow Demon?" Although Lu Heng speculated, he still voiced this doubt.