"Do you retain memories of your life?" Rob asked. "A part" Derrida responded in surprise. It didn't expect Rob to see this so quickly. It is very rare to retain part of the memory of one's life, which gives it a higher starting point than other similar species on the road of evolution. When it evolves from an ordinary corpse witch to an iron corpse witch, it faces countless challenges and dangers. Having wisdom and memories of its lifetime allows it to better cope with these challenges. Just keep the memory. If it was born and grew up in this place, it will definitely remember many special things. If you have time now, you can talk about it slowly. In a sunken low-lying place at the foot of the corpse mountain, looking at the pile of pitch-black liquid in front of him, Rob asked doubtfully: "Is this the kind of thing that can quickly increase soul energy?" Taking advantage of the pregnancy spirit box and soul crystal, While absorbing soul energy, Rob and Derry had a "friendly" conversation. Under the threat of Jirasha's shovel drill and No. 7 Padfoot, Derry had to dig deep and tell everything he knew. All the things were poured out, and what caught Rob's interest was a liquid that Drede said could quickly increase soul energy without any risk of backlash. This was also the main reason why Dredd was able to upgrade to the Soul Heart. From Derrid's reaction when facing the zombie summoned by Cabrit, it can be seen that its combat experience is completely inferior to that of the iron zombie before, but it still condenses the soul heart, and the strength of the soul heart is much higher. It was stronger than the battle-hardened tin zombies. Rob originally thought it was strange, but he got this answer after asking carefully. This pile of liquid does contain abundant soul energy, but what makes Rob confused is why the surrounding spirits and undead creatures turn a blind eye to the liquid containing such abundant soul energy. "This is good stuff." Seeing the pool of liquid, Cabrit said, with unconcealable excitement in his tone. "The source of death breath, a large amount of death breath has been accumulated for a long time, and it is partially condensed and accumulated. Every drop is pure death breath." Cabrit picked up a little bit of liquid with his fingertips, and poured it into the side. The ground shook. As soon as the pitch-black liquid touched the ground, a large cloud of black smoke exploded, covering all directions. It was the extremely rich aura of death. Being rushed by the strong aura of death, Rob's soul was shaken. The ghosts around seemed to sense this strong aura of death, and were drifting in this direction one after another. "Why are they not interested in the source of death's breath?" Rob pointed to the wandering ghosts and a few undead creatures, puzzled by the question. "Haha, except for intelligent creatures, who would know how to dilute the source of death's breath? They cannot digest it in its pure liquefied state." Cabrit explained with a smile. ¡°Throwing it to the ground and exploding it means it is diluted?¡± Rob asked. Derrida looked at Cabrit with admiration in his eyes and murmured: "Dilution, yes, dilution." He discovered this method by accident, but he never thought of the words to use it. To describe, when I hear this word now, I feel that no other word is more appropriate than it. This iron frame is so powerful, it seems like it knows everything. "Yes, but there is actually a better way to use it." Cabrit said, taking a handful from the source of death breath with both hands. Huo! Cabrit's hands ignited the blue soul flame, wrapping the source of death's breath in his palms. Burned by the soul flame, the source of death breath began to slowly release wisps of blue smoke. The blue smoke floated in front of Cabrit, and when he inhaled hard, wisps of blue smoke quickly chased into his body. The flame of the soul became more and more powerful, and the amount of blue smoke released by the source of death's breath became more intense. In the end, it was simply spurting out. Cabrit's soul strength also increased rapidly as he inhaled more and more blue smoke, from level six to level seven all the way to the limit. Finally, the blazing soul fire shrank crazily inward, shrinking into a solid small ball. With a slight tremor, the small ball spurted out blue flames. It kept swallowing and swallowing, and the heart of the soul was successfully condensed. Rob and Deli were dumbfounded. In a short period of time, the strength of the soul increased by two levels, and even broke through the level of the soul heart in one fell swoop. Isn't this method of absorbing soul energy too efficient? Derrida thought that he was already great at knowing how to dilute the source of death breath, but that was just the most primitive way to use it. The diluted source of death breath still needs to be absorbed, converted and digested in the end, and the whole process is very long. ¡°If it had understood Cabrit¡¯s method from the beginning, it would have absorbed all the source of death breath long ago. Cabrit breathed a sigh of relief. With the opportunity of this demonstration, his soul returned to the strength of the soul heart. If he improves it in the future, the change will not be so obvious. Turning his head, he looked at Rob and said: "You come here and try, use the flame of the soul to burn the source of death. But I have reached this state before, and I will recover faster now. Your first impact In the new mirror world, the speed will be a little slower. " Rob followed Cabrit's example and picked up a handful of the source of death's breath from the ground. The soul energy was transferred to his hands and turned into flames. A steady stream of blue smoke was burning and rising from inside. Rob inhaled hard, and when the blue smoke entered his soul, Rob instantly felt as if his whole head was immersed in extremely cold ice water. His spirit was stimulated, and all his senses were rapidly rising. The sounds around him became clearer and clearer, the surrounding objects became clearer and clearer, and the soul fluctuations of everyone around him seemed to be amplified dozens of times. Every time he spoke, it was clearly transmitted to Rob's ears. I don¡¯t know how long this state will last. During this process, Rob felt that his soul was constantly growing and improving. His whole body was full of power and he couldn¡¯t help but want to erupt. Roar! When the strength of his body reached the limit, Rob couldn't help but roar, and the huge soul scream exploded and spread throughout the cave. When Rob roared, something in his body suddenly condensed and began to beat violently. With every beat, Rob felt a steady stream of power pouring into his body. This feeling was so refreshing that Rob couldn't help but punch twice in the empty space in front of him. As he punched the fist, the Dou Qi technique that had already penetrated into the bone marrow also started to move, and two black masses condensed like substance. Qi light burst out of the fist. Standing in front of Rob happened to be No. 7, with Dredd still hanging on its hand. One of Rob's two balls of energy just hit the hanging Dredd. The aura was firmly imprinted on Dredd's body, and his entire body flew back with a bang. The high-speed flying body caused the iron chain to collapse, and the remaining momentum made No. 7's arms tremble. For a moment. Rob was also frightened by the power of his two punches. After Delhi staggered to a stop, Rob looked at its body and saw a clear dent on the steel-hard skin on its chest.