Completely different from the scene in the Qiankun Shield Fantasy Realm, the Imperial City of Lintian is not an ordinary palace in the historical sense of the earth, and it is different from the palaces of ancient China, the ancient West, and even the Middle East. It is a castle that is about six or seven hundred meters high and can be five miles in a radius of about five kilometers. The castle is also located in a basin about a mile deep and about 12 miles in radius, and at the bottom of the basin is a blue lake that looks like a thousand kilometers like the sea, making it seem that there is nothing unusual when you look at it from the outside.

Zhang Fan did not believe that this conventional low-martial world was capable of building this kind of castle, which was a bit large for the industrial age, and very doubted that it was built on some unique mountains inside and minimized the amount of work, but even then it seemed considerable. The size of the building in the Imperial City also made Zhang Fan frown a little at this time, at least what he thought of at the beginning was like robbing a tomb, and it may be very difficult to take some methods from top to bottom. In the end, you have to break through it yourself. Some of the other prepared means are only auxiliary.

However, the artist is bold, and Zhang Fan at this time does not have much fear of these. Flying and jumping into the air dozens of feet opposite the shore, the volley is empty. At this time, Zhang Fan couldn't fly long distances in the air like a real immortal cultivator or a realm cultivator after all, but after jumping into the air, he used the top-level light power brought by the internal qi to float down and glide, but he finally crossed a distance of several miles, and when his feet were about to approach the edge of the castle, he relied on the ground effect to volley again, and finally landed in the center of the castle in a short time. At this time, Xiao Xuan suddenly slammed down with the improved Wind and Thunder Palm Technique.

This time, the high-frequency vibrations caused by the internal force seemed to be like drilling in a more definite direction, crushing all the earth and rock within six zhang of depth in an area that was no more than one foot wide and two feet deep. Later, these shattered stones and crushed soil were suddenly ejected under the action of internal forces, forming a pillar of smoke and dust like a volcanic eruption.

As Zhang Fan expected, the center of this huge castle is indeed a solid mountain to rely on. Zhang Fan did not have the ability to penetrate the entire mountain with a single blow, and could only smash more than five cubic meters of soil and rock in a range of no more than six or seven zhang deep under a single blow, creating a passage that could accommodate him. But the hard work paid off, and in just a quarter of an hour, Zhang Fan used this method to drill a deep hole about a mile deep in the same place. Moreover, the same was done in four other locations within the central solid mountain, and deep holes that were more than four mouths and a mile deep enough to fit down were made.

Then, Zhang Fan spent about a minute resting in the Qiankun Shield for three hours without any hurry, adjusted his physical strength to the best state, and carried out ultrasonic detection along the five holes that were only able to accommodate him at a depth of about one mile.

With Zhang Fan's ability now, even in the mountains, he can find strange things within a radius of one mile, and he can barely feel that some large spatial ranges and even the distance of the general situation can reach one and a half miles.

In this way, relying on the five evenly distributed super thief holes, Zhang Fan used ultrasonic vibration to figure out some of the strange and even secret passages in this mountain city castle in a short period of time, and couldn't help but sigh secretly: If he wasn't already a monk equivalent to the peak strength of the transformation realm, he was just an ordinary martial artist, even if he was the peak master of the ordinary inner door nine pins, he would definitely be nine deaths or even ten deaths in the face of the various mechanisms in this mountain city castle. If you don't know it, you will rashly break in from those few bright doors of life and death according to the other party's routine, even if there is no danger, most of them will be disgraced.

Of course, Zhang Fan is glad that he is not an ordinary indigenous protagonist, but has a way of thinking brought by modern reason and science, and everything has become different. After thinking for a while, Zhang Fan attracted some very unique spirits obtained from the Zhenwu Sect from the Qiankun Shield, weighing about 10,000 catties, and poured these liquor into a one-mile-deep hole in the center of the mountain city, so that the mountain hole of 100 cubic meters and about a mile deep was suddenly filled with the smell of wine. Subsequently, Xiao Xuan took dozens of cubic meters of oxygen separated from the air by internal force, and even dozens of cubic meters of carbon gas from the Qiankun shield and poured it into the hole.

At this time, Zhang Fan pulled the internal force, and the wine, charcoal, and oxygen seemed to be mixed in some ingenious way. Then, almost in a moment, Zhang Fan collapsed the hole with one palm, forming a sealing gap about one zhang deep. Almost at the same time, a violent ultrasonic vibration detonated the mixture of alcohol, oxygen and charcoal, bringing about an effect similar to the explosion of 10,000 catties of modern explosives. At this time, Xiao Xuan tried his best to suppress the power of the explosion with the Qiankun Shield.

At this moment, it seemed as if an earthquake had occurred on the mountain where the entire mountain castle was located, and most of the mechanisms within a radius of several miles were touched. The internal Broken Dragon Stone, Broken Dragon Iron, and even the passages of incendiary materials such as fire oil, oil circuits, poisonous gases and other poisons were either destroyed or triggered in advance under the vibration of the explosion. The tens of thousands of masters of the outer gate who were deployed in this mountain castle were also wiped out in this internal shock.

Then, the huge changes brought about by the oil and the channel that attracted the magma erupted violently along the other four holes at the top of the castle, forming four small volcanic vents, which suddenly caused thick smoke to billow above the entire mountain castle.

In the previous operation, some passages in this mountain castle were accurately detected, and most of the mechanisms had been destroyed, so Zhang Fan had no worries at this time. The physical mountain is not as easy as a land escape for Zhang Fan today. However, some of the broken passages or passages made up of rocks in the mountains can easily pass through them with Zhang Fan's internal qi now, and form a bubble-like protective layer around him.

After approaching the deepest part of the castle at the foot of the mountain castle as quickly as possible, a cavern-like hall with a circle of fifty or sixty paces and a height of several zhang appeared like a cave.

A graceful and luxurious woman in palace clothes was sitting on the high platform in the hall at this time, which made Zhang Fan feel a little familiar, as if she had suffered a lot of internal injuries. The rest of the men and women in the hall who looked like the guards had already been wiped out by the previous sonic vibrations.