Chapter 407 A Black Key

Words : 1569 Updated : Oct 13th, 2025

After he finished the daily quest, Feltia [2] did not immediately return to Ursula's black castle but instead went to the Endless Death, especially since he still had a quest to find the missing relic. Sometime ago, Ashreth told Feltia [2] that there were two missing relics in the Amaris Twins' sub-realm. One is inside the black castle, which he believes is Ursula's orb, but it does not complete the quest. That's why he decided to go to the Endless Death, especially since she told him that the second relic was there, and he believed that it was in Tharnon's hands. After he met Tharnon once, Feltia [2] no longer felt afraid of the Endless Death, and he immediately flew down into the abyss. Even so, he didn't use his light element, especially since the ancient demon beast hated it so much, and he used his fire element to light up the place. "Hmm?" Tharnon immediately looked up as soon as he saw that. "Why did you come to my place, human?" "Tharnon, I came here to ask about the relic, and I believe that it is in your hands now." Tharnon scowled in response to Feltia [2]'s words. "I have no intention of taking it from you, especially since it's not that useful to me. However, there is something I can't explain to you, so I hope you can show it to me." Tharnon nodded before spitting out something from his mouth, which was a black key, and two notifications immediately appeared in Feltia [2]'s mind. === [Ding] [Quest: Finding a missing relic.] [Quest rank: Medium.] [Status: Done.] [Reward: Medium Gift Pack x1 is sent to the inventory.] === [Ding] [Quest: Finding one of the ten demon lord seeds.] [Quest rank: Medium.] [Reward: Medium Gift Pack x1.] === 'One of the demon seeds?' Feltia [2] muttered with a frown. 'Lillea found one of them by chance, and those demon rulers have repeatedly searched for the rest, but they couldn't find them, yet the system assigned me such a task.' [Master, Lillea managed to obtain one of the ten demon lord seeds, despite her lack of desire or effort to find them. That's why you don't need to think about it, and one of them might summon you by itself later.] 'Yeah, you're right.' Feltia [2] then took the key and questioned Tharnon. "What exactly is this black key? Why is it considered a lost relic?" Instead, Tharnon let out a heavy sigh. "To tell you the truth, I myself do not know the use of this black key, and the first demon lord gave it to me before he disappeared, but he did not give me any explanation at all. Since then, I have tried searching all over this realm for a place that only this key can open, but I couldn't find any such place, so I decided to give up and keep it inside my body." "The first demon lord?" Tharnon nodded to Feltia [2]. "Have you ever tried checking the ancient castle? After all, that castle was his original residence, so I think this key is related to that place." "I have checked the entire area of the ancient castle, but I can't find anything there." Tharnon's answer caused Feltia [2] to fall into deep thought, and she felt certain that the black key must be used to open one of the places in the Diyu Realm. "Actually, I don't want to give this key to anyone, including Oz, but I think it would be useless if I kept it, and the mystery of this key would never be solved. I don't know how you can tell that I have it, but you are clearly not an ordinary living being with your three identities, and you might be able to solve the mystery, so you can take it with you. However, after you solve it, I want you to tell me the result, and I want you to take me to that place." Perhaps you can use another method to investigate this matter, which is to establish a relationship with Shang Guangming. However, he is too strong for you, so you have to be careful and alert, lest he suspect you and kill you instantly.] Zhang Xiaolong [3] naturally already understands that. "Old Demon, I want you to ask all the tree demons in the demon emperor city to dig deeper information about the current demon lord, and I will also think of other ways to investigate his true identity. However, I can't do it in a hurry, and it might take me a while to dig out the truth." "All right." Arbeola nodded in agreement and immediately ordered all the tree demons in demon emperor city to carry out Zhang Xiaolong [3]'s idea, especially since it was the only solution they had for the time being. Zhang Xiaolong [3] then asked Arbeola again. "Old Demon, do you know anything about the blood demon tree?" "Hmm?" Arbeola immediately looked at Zhang Xiaolong [3], who immediately explained to him about the five blood demon trees in the Sky Jade Realm. "The blood demon tree doesn't have a consciousness like me or other tree demons, and the five trees you find in that realm are only a small part of the original. The original demon tree lives under the demon emperor city, and only the current demon emperor can enter that place. However, he granted the high-ranking demons permission to absorb the demon miasma from that tree, leading to a significant increase in their demon power in recent years. In fact, the tree is not the tree demon of this realm, and the two human cultivators brought it from other realms." "So those high-ranking demons also use the demon miasma from the blood demon tree to increase their demon power and strength, huh?" Arbeola nodded to Zhang Xiaolong [3]. "Actually, I have absorbed a lot of that demon miasma, but I didn't get any increase in my demon power, so I feel a little strange about that." "That's weird." Arbeola was also perplexed by this, until he suddenly recalled something. "Kid, you are indeed a full incubus, but you have two other identities. Moreover, your fox form has pure and strong light power, and it is the eternal enemy of the darkness, so I think it directly purified it so that you can't use the demon miasma to strengthen your demon power." Zhang Xiaolong [3] let out a heavy sigh upon hearing Arbeola's answer, particularly since he and Mei had also made the same guess. "If only I could use the demon miasma to strengthen my demon power, then I would be strong enough now." "Hahaha." That made Arbeola laugh. "Kid, you don't have to feel disappointed by that little thing, right? You can't use demon miasma to strengthen your demon power, but you have many extraordinary things in your possession that you can use to improve yourself." "Well, that's true." Then, Zhang Xiaolong [3] warned Arbeola. "Old Demon, that guy has already arrived in this eastern region, and he seems to have sensed your powerful demon aura, so he's heading over here now." Arbeola nodded understandingly and alerted all the tree demons in the ghostveil forest, while Zhang Xiaolong [3] also prepared himself to face the worst possibility. In a few minutes, Shang Guangming finally landed in front of them, but he didn't speak to them right away and scanned the entire forest with his senses. Unfortunately, he couldn't find anything there other than demons, but he was slightly surprised when he sensed Zhang Xiaolong [3]'s cultivation. 'A soul realm fox demon? Could it be that those heavenly foxes came here to chase this weak demon beast cultivator?' "Hey! Did you see some white foxes in this area a while ago?" "No." Arbeola replied to Shang Guangming with a head shake. "I can't leave this forest; therefore, I've never seen those white foxes, but I learned about their arrival from other tree demons. They came here specifically to chase this little black fox, and I gave him protection because he is a demon fox." "Hmm?" Shang Guangming frowned after hearing that; he immediately approached Zhang Xiaolong [3] and crouched down in front of him. "Can you understand me? Where did you come from? What exactly is your relationship with those heavenly foxes? Why are they chasing a weak demon fox like you? They even risk being exposed to the demon aura in this realm just to capture you, so I am sure that you are not an ordinary demon fox." 'Should I answer this guy, Mei? What kind of answers should I give him? We don't have any information about the middle and upper realms, so I'm at a loss as to what to say to him.' Zhang Xiaolong [3] asked the AI while glancing worriedly at Shang Guangming. - To Be Continued - === My other novels 1. Cultivator With Modern AI 2. Primordial 'Dual Cultivator ' Dragon With System 3. Otherworldly-Cultivator 4 . Tang Xiao: The Birth Of The Multiverse If you guys haven't read all four, maybe you can take a peek at them, who knows you might like them. ===

Chapter 407 A Black Key

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