As long as there’s enough gunpowder, pure enough, not just a bronze door, even a large mountain can be blown open. Now Zhang Chen has money, so naturally he doesn’t need to painstakingly extract materials for gunpowder himself. Zhang Chen directly transforms into a Vampire Bat and comes to the county town, then uses silver to purchase various materials in the city. Zhang Chen bought many materials for explosives; fortunately, he had the help of the Fox Spirit, who tirelessly transported them back and forth. Thıs text ıs hosted at 𝕟𝕠𝕧𝕖𝕝✶𝕗𝕚𝕣𝕖✶𝕟𝕖𝕥 After purchasing dozens of times, Zhang Chen returned to the cave and said to the Fox Spirit, "I’ll personally demonstrate how to make high-explosive gunpowder. You have to learn well because you’ll be responsible for making gunpowder in the future." Fox Fairy Nannan widened her eyes and carefully watched Zhang Chen’s teaching. Zhang Chen also secretly lamented in his heart at this moment. In this world, without Space Divine Techniques like Universe in the Sleeve, how come he’s in such trouble? Zhang Chen bought many materials. The bronze door certainly couldn’t be blasted open entirely — more of them were for precaution against Prince Pingbian’s Mansion. "If it weren’t for considering that Prince Pingbian’s Mansion might be hiding unknown mysteries, I really would want to throw some explosive packs inside and blow the Prince Pingbian’s Mansion to the sky," Zhang Chen muttered in his heart. However, he felt that the Prince Pingbian’s Mansion had been able to confront the court for hundreds of years, so it undoubtedly wasn’t that simple. If, due to a tiny matter, his actions were exposed and got himself dragged in, it wouldn’t be worthwhile. Zhang Chen was very serious about making gunpowder; that bronze door was meters thick, probably weighing a hundred tons. Blasting the entire bronze door into collapse was impossible, but blowing open a crack was indeed possible. "With so much gunpowder, are you intending to explode that stone crevice?" The Fox Spirit inquired. She didn’t yet know that Zhang Chen was aiming to blow open the bronze door to collect the experience value behind it. Zhang Chen shook his head upon hearing this: "The stone crevice is easy to blast, but if we don’t deal with the gravity emanating from the Twelfth Tier mystery, even blasting open the stone gap won’t allow us to approach the Twelfth Tier mystery. Keeping that stone crevice can still serve as a cover; if we blow up the stone crevice and someone later inadvertently notices this place, or the Twelfth Tier mystery’s aura leaks out, attracting others’ prying eyes, our efforts would end up benefiting others." Zhang Chen’s voice was filled with contemplation. Of course, he wanted to obtain that Twelfth Tier mystery early, but the most challenging part about acquiring it was not the crevice but the gravity of the earth. Because Zhang Chen mastered the Water Control Technique, he directly moistened all the gunpowder to prevent it from exploding, then boldly continued making gunpowder without worry. He didn’t ask for much; he only hoped the explosives, once detonated, could blow open a crack in the bronze door. That would satisfy him. Soon, Zhang Chen finished making the gunpowder and then directly froze it with ice. This time, Zhang Chen held his breath and delved into the water current. Because the gap in the passage was narrow, it wasn’t easy for Zhang Chen to traverse through it, thankfully having the Fox Spirit as manual labor. Besides, with the gunpowder not fearing the water, Zhang Chen directly strung it together with rope, then had the Fox Spirit drag it and transport it to the front of the bronze door. Zhang Chen, looking at the bronze door in front of him, scrutinized the tightly sealed bronze door, pondering how to embed the explosives, where precisely to embed them to unleash their maximum power. While the gunpowder had potent power, to let it unleash its utmost power, it must be as enclosed in space as possible. Zhang Chen inspected beneath the door and, due to the tall threshold, found a 20-centimeter high gap under the bronze door, a meter wide, sufficient to install the gunpowder. Zhang Chen installed all the gunpowder and sealed it with layers of river silt, then drew out the moisture. He even felt unsafe, fearing being blown up, so he instructed the Fox Spirit to ignite the fuse with a flame, while Zhang Chen himself had already jumped into the river water. Would the entire mountain be blown into collapse? Zhang Chen wasn’t worried about that; although his two thousand pounds of gunpowder were powerful, they were far inferior to the force that split open hundreds of miles of earth previously. Moreover, this place was covered by a Feng Shui Grand Array, so people outside, upon hearing the commotion, would at most think it was an earthquake and wouldn’t imagine otherwise. Fox Fairy Nannan gleefully took the task and went. Zhang Chen lay in the water, watching Fox Fairy Nannan’s departing figure and sighed secretly in his heart, "My skill is really useful! Without Fox Fairy Nannan, I’d have to do such things myself, which would make me anxious." "Zhang Chen, save me!" At this time, Fox Fairy Nannan’s voice came from a distance. Without saying a word, Zhang Chen immediately retrieved Fox Fairy Nannan and quickly dived into the water. Like a burst of thunder, the sound resonated continuously through the mountains. Even if Zhang Chen dived into the water, the enormous sound left him dizzy and disoriented. Huge shockwaves rolled up, and the stalactites suspended on the stone walls fell indiscriminately, Just that Zhang Chen overthought it; mere two thousand pounds of explosives, facing the Feng Shui Grand Array, hardly made a dent. The entire underground tomb, except for stirring up a wave, like being hit by a gale, exhibited no anomalies whatsoever. People outside only heard a muffled sound from the mountain and then all abnormalities vanished. However, on a certain mountain, the Feng Shui Master Zhang Chen saw earlier stood on a small hilltop, suddenly dropping the staff in hand, gazing at the mountain before him with excitement in his eyes, "There is Dragon Qi here! There’s Dragon Qi here! There’s Great Creation here!"