Luo Lie had never heard of the Nine Netherworld Secret Realm, but judging from Yan Tianxin's reaction, it should be a place that is daunting. Otherwise, Yan Tianxin's strong mentality would not reveal such panic. Yan Tianxin said anxiously: "Are these four words engraved on them?"

Luo Lie was stunned for a moment. How did Yan Tianxin know? It seemed to have seen it with his own eyes? He nodded and said, "Not bad!"

Arnold placed the explosives and returned to the bottom, reminding everyone to stay away from the hole that had just exploded to avoid being accidentally injured by the shock wave caused by the explosion. Luo Lie began to examine their current situation again. Although he was eager to rescue the sparrow, the first issue in front of them was to leave the Tibetan Bing Cave.

The blind man approached Arnold and whispered, "Can you succeed this time?"

Arnold nodded and said, "Don't worry if I do my business!" Convinced that everyone had found a hidden secret, Arnold lit the lead.

Everyone's eyes followed the burning fuse. As the fuse quickly shortened, everyone became nervous. The blind man suddenly thought of another question: "I said Golden Retriever, how many explosive packs did you use?"

Arnold stretched out four fingers.

The blind man was stunned: "Damn, aren't you afraid of blowing up this place?"

Arnold reminded him to understand: "It seems that the amount is really large when you say this!" It was too late to think of this matter at this time. As soon as he finished speaking, the explosive pack had already detonated. The explosion from the top of his head was shaken. This guy really used up enough weight, four times larger than the last time, and four times more powerful. Although the center of the explosion was next to the iron gate above, the few people far from the center felt the power of destruction, smoke and dust were everywhere, and sand

Shi Luanfei, even the rat that had just been burned to death flew up on the spot. In order to relieve the pressure of the explosion, the blind man subconsciously opened his mouth wide, but felt a black object flying towards him. Before he could shut up, the thing had already penetrated into his mouth, but it was a dead mouse that was blown away by the explosion. The blind man was so disgusting that he almost vomited out his bile. Fortunately, it was a dead mouse. If it was a stone, he might have finished his life.

Luo Lie coughed while getting up from the dust and complained: "Ano, you're desperate?"

Zhang Changgong fanned like a palm-leaf fan, trying to disperse the dust in front of him. When he saw the surrounding environment clearly, he climbed up first. What surprised Zhang Changgong was that the explosion of Arnoga's sufficient amount still did not blow up the iron door, and the iron door remained motionless.

When he learned the result, the blind man almost cursed. While wiping his mouth, he pointed at Arnold and brewing his words. But at this moment, another rumbling sound came from the front, but a partial collapse occurred on the top of the cave. Everyone looked up and saw that although the iron gate was still there, a big hole was shaken out of the ground behind the iron gate. After Arnold figured out the situation, he laughed happily: "I knew that this time it was time!"

The blind man threw the dead mouse he vomited at Arnold, and then said viciously: "Can you die if you don't brag?"

Everyone climbed up from the collapsed pile of rocks, and the welded iron door still stood firm. From the exposed edge, it can be seen that the thickness of the iron door was nearly one foot. No wonder the two explosions shattered the surrounding rock layers, and the iron door was still unharmed.

The blind man said curiously: "Why is Xiao Tianxing building such a strong iron gate in the Tibetan Bing Cave?"

Yan Tianxin said: "Beware of outsiders entering, maybe there are important weapons hidden in it." She covered her mouth and nose with a handkerchief, which can play a role in isolating smoke and dust.

Zhang Changgong turned on the flashlight to illuminate the front. There was a wide passage in front, and it became wider as it walked. The ground was extremely flat and it was a standard paved road outside. Using the light beam of the flashlight to shine around, it was a huge cave that was completely dug out by hand. There was a huge dragon flag on the wall. At first glance, I thought it was the national flag of the Qing Dynasty. But when I looked carefully, the figure was completely different from the traditional dragon flag. It was different from the majestic and domineering side-exposed side-exposed. This dragon was pitch black all over and pale with eyes. The most peculiar thing was that it had two wings behind it. The dragon claws were drawn like dry joints, revealing an indescribable weirdness from head to toe.

Turning over the corner ahead, everyone suddenly realized that this place was wider than before. The width of the road could accommodate six carriages in parallel. The road was straight to the distance. No one could have imagined that there was a huge square hidden in the Tibetan soldiers cave below Lingtian Castle.

What they unexpectedly expected was that an airplane was parked in the square, and the plane was painted red, just like a huge dragonfly living quietly in the center of the black square.

While Luo Li and his men were still unable to believe their eyes, Arnold screamed excitedly and then rushed towards the plane at an astonishing speed. This guy was once the ace pilot of the Royal Air Force and had extraordinary feelings for the plane. After coming to China, he had few opportunities to see him, not to mention flying the plane. Unexpectedly, in this wilderness far away from the city, there was such an airport hidden in the belly of the Black Tiger Ridge, and there was an airplane on it.

The aircraft is driven by the current three-wing, cloth-skinned structure, and single-propelled propeller engine. Under normal circumstances, it can carry two people, one person is responsible for driving and the other person is responsible for shooting. Arnold climbed into the plane, sat in the pilot seat, danced excitedly, and instantly regained his powerful feeling in the Royal Air Force's pride of laughing in the sky.

Although the rest of the people were surprised to see the plane here, none of them was as excited as Arnold. According to the blind man, can that thing be eaten as a meal? Can that thing take us away safely? Under the current situation, finding a way out is the most important thing, and no one has time to play.

While Arnold was staying on the plane and thinking about it, the rest of his teammates were busy looking for a way out. They encountered another big iron door five hundred meters ahead of the plane. Fortunately, the iron door was not welded until it was dead. The blind man used his empty hand to open the door lock. Luo Lie and Zhang Changgong pushed open a door respectively, and light was transmitted in front. Both of them could not adapt to the sudden bright light because they were in the dark for too long. They subconsciously closed their eyes and after a while they adapted to the bright light ahead.

Luo Lie opened his eyes first. In order to avoid the damage to the strong light, he narrowed his eyes and minimized the stimulation of the strong light as much as possible. However, a colorful light appeared in front of him. Luo Lie thought he was dazzled, so he blinked hard, and looked closely and found that he was not wrong. After walking a few steps forward, he discovered the cause of the colorful light. The exit in front was frozen by a thick ice layer, and the sunlight shone on the ice layer. The ice layer refracted the light, and the white light turned into colorful colors through refraction, so it showed such a magnificent and colorful light and shadow in front of them.

Zhang Changgong came to the ice layer and stretched out his palm and slapped it twice. The ice layer was very thick, and it was unlikely to rely on manpower to open it. Fortunately, they brought a lot of explosives. One thing can be concluded that by opening this ice layer, you can get out of the predicament. There should be no barrier outside the ice layer, otherwise the sunlight would not be projected in.

The explosion went very smoothly. With the experience of the first two times, Arnold only used two explosive packs to explode the ice layer outside. After the ice layer broke, a strong mountain wind blew over the face, rolling up the ice particles and slapped it on Luo Lie and Zhang Changgong who came to the entrance of the cave immediately, making them almost breathless. The two held the edge of the explosion ice cave and looked outside, and couldn't help but be surprised. The outside was not a way out. Outside the cave was a nearly vertical cliff. From where they were, there was at least three hundred meters away from the location where they were. Looking up, they saw crystal clear ice waterfalls hanging above, like jade flowers and trees, or like thousands of swords hanging upside down.

Zhang Changgong was very familiar with the terrain of the Pale Mountain area. After looking around, he immediately determined where they were now. This is Tingxue Cliff on the back mountain of Heihu Ridge. Tingxue Cliff Listen to the snow in winter and Tingxue Cliff Listen to the waves in summer, all because there is a waterfall on Tingxue Cliff.
Chapter completed!