Zhang Chi highly suspected that Xiao Hongying and others hid Huang Feihong in a corner underground, but this underground pipeline was intricate, and it was not so easy to investigate.

Cao Chengguang could already conclude that the underground drainage channel they were located had been abandoned, and the area near the prison could be inferred from the traces of the collapse that it had experienced an explosion, but a newly dug hole was found nearby, and it seems that Xiao Hongying and the others were also trying to dig a tunnel from here to the bottom of the prison.

Cao Chengguang winked at Zhang Chi and said, "Guess, will they be in here?"

Zhang Chi shook his head and said: "No way, if you can open up the tunnel to rescue the old grandson, there is no need to take the next step of kidnapping Huang Feihong, you must have encountered an obstacle." ”

Cao Chengguang said: "I want to see what kind of obstacles they encounter. The two walked along the newly dug hole, and after walking more than a hundred meters, they had reached the end, Zhang Chi raised the torch and looked closer, and it turned out that they had dug a hard cornerstone.

Cao Chengguang brushed the dust off the surface with his hand, suddenly frowned and said, "I can't do anything." ”

Zhang Chi thought that this thing was joking again, and said in a low voice: "How can I be powerless, it's a big deal that I'll wait here and escape inside to save people." ”

Cao Chengguang said: "Do you know why you can't see water in this underground drain?"

Zhang Chi shook his head.

Cao Chengguang said: "This drainage channel has existed for many years, I wonder if even if the Shanman clan blew up the drainage channel when they gave up Storm City, it is impossible to have no water at all, unless the explosion happened many years ago, I now suddenly understand that the reason why it was blown up is because this drainage channel does not work, the temperature of Storm City is very low, even if we are underground, it is also minus ten or twenty degrees, try to pee, it will condense immediately, under such conditions, there is no need for the drainage pipe to exist." ”

Cao Chengguang patted the cornerstone and said: "Touch it with your hands, this is not a stone at all, this is all ice, I have the ability to escape from the earth, but I don't have the ability to penetrate the ice, forget it, I don't want that VIP card." "He is a realistic person, he knows that it is stupid to do what he can't do, why do useless work, even the Chongmu clan dug up this place by himself, these underground ice cubes have existed for I don't know how many years, the hardness and strength are similar to the rocks, fire can melt, but where to find so much wood at a time?

Zhang Chi stretched out his hand and touched it, the tentacle was cold, Cao Chengguang didn't lie to him, this was really an ice cube, he laughed.

"Laugh at the fart, I'm going to pee!" Cao Chengguang walked to pee, and was urinating when he suddenly found a large stream of wet water under his feet, Cao Chengguang couldn't believe his eyes, his own flow didn't support so much water at all, and this water obviously flowed from behind, Cao Chengguang was a little depressed, this kid was so unkind, he actually stood behind himself to pee, can he still order Bilian? Cao Chengguang turned around angrily, and the scene he saw made him dumbfounded.

A large hole had appeared above the ice wall, and the ice had melted into water and flowed out, and Zhang Chi's figure had disappeared into the ice cave.

Cao Chengguang suddenly remembered that this kid was good at controlling fire, but he never thought that his ability to control fire was so strong, and the heat he generated could actually dissolve the ice wall into a hole.

Cao Chengguang put on his pants and went around to the side, water kept coming out of the ice cave, and it quickly froze on the ground outside, and after waiting for about ten minutes, Cao Chengguang heard Zhang Chi's voice coming from inside.

"Lao Cao, you can come in!"

Cao Chengguang stepped on the ground that melted and then condensed into ice and walked over carefully: ", this soak of urine is powerful enough." ”

Zhang Chi laughed, his voice echoed in the ice cave, Cao Chengguang walked more than fifty meters before he came to Zhang Chi's side, he couldn't imagine how this kid dug such a long passage in just five minutes, to be exact, it should be dissolved.

Zhang Chi stood at the end of the ice cave, pointed to the wall in front of him and said, "Now it's your turn." ”

Cao Chengguang took out a small hammer and knocked on the wall, convinced that he had broken through the ice, and he smiled: "Amazing, the back waves of the Yangtze River push the front waves, my old man is not convinced." He nodded to Zhang Chi and said, "Wait for me here, I'll go and find out the situation first." ”

After Cao Chengguang finished speaking, his body suddenly disappeared into the wall, Zhang Chi kept looking at him, not paying attention to how the old fox got into the wall, the art of earth escape is really magical, if he also knows the art of earth escape, how good it would be.

Zhang Chi waited outside for more than ten minutes, and one of Cao Chengguang's heads appeared from above: "That's right, there is a prison in front!"

He came out of the wall, and when he came out, the wall was still the same, without the slightest trace.

Zhang Chi secretly sighed that Lao Cao was powerful.

Cao Chengguang said it simply, it only takes more than 20 meters to reach the underground waterway of the prison, which is extremely smelly and full of rats. The bottom of the prison is covered with iron plates, and it is tentatively estimated to be 30 centimeters thick, and it seems that the prison has some understanding of Shigeme's ability, so it has taken precautions.

Zhang Chi asked Cao Chengguang to take him to take a look, Cao Chengguang nodded, and let him see with his own eyes that it was good to die.

Cao Chengguang took out a hat from his pocket, put Zhang Chi's head on, and said that he couldn't let him see the unique secret book, and blindfolded Zhang Chi, Cao Chengguang asked him to carry himself. Stretched out his hand and patted Zhang Chi's head and said: "Take a breath, rush forward now, there may be some resistance, but just keep your head down, and I will stop when I stop." ”

Zhang Chi nodded, took a deep breath, and heard Cao Chengguang's voice in his ears: "Rush!"

Zhang Chi rushed forward with a heart, he had repeatedly confirmed the stone wall in front of him just now, and at his current speed, he would at least have a blue nose and swollen face if he rushed up at his current speed. When the body touched the wall, there was no hard rebound, only the body felt as if it had jumped into a quagmire, and there was some resistance. According to Cao Chengguang's instructions, he lowered his head and walked forward, walking thirty steps, suddenly his body loosened, there was a feeling of breaking through the membrane, Zhang Chi realized that he had broken through the stone wall.

Cao Chengguang said: "Okay!"

Zhang Chi stopped, Cao Chengguang uncovered his hood, but he didn't mean to get off him, and said in a low voice: "The front is the underground of the prison."

Zhang Chi took two steps forward, and saw the black things running around on the ground, his eyes flashing green, but they were all rats living in the underground drains, although they had blocked their mouths and noses in advance, they still smelled the rancid smell outside.

Cao Chengguang pinched his nose and pointed upwards and said, "Iron plate, they have embedded a steel plate in the foundation of the prison, like a sandwich, and clamped the steel plate in the center." ”

Zhang Chi said: "I am responsible for picking up the cornerstone, and I am responsible for the steel plate." ”

Cao Chengguang said: "You don't need to pick it up, there is a place in front of you where the cornerstone falls off, revealing the steel plate." ”

Zhang Chi carried Cao Chengguang on his back and walked in the direction he guided, and sure enough, he saw that the cornerstone fell off not far ahead, and the steel plate inside was exposed.

Zhang Chi put Cao Chengguang down, although Cao Chengguang was very happy to be carried by him, he also understood that Zhang Chi was going to break through this steel plate, but he didn't know if this kid's ability was enough to melt this steel plate?

Zhang Chi drew a circle on the steel plate with stone powder, then put the hat he had worn on Cao Chengguang's head, and said in a low voice: "Trade secrets, don't look at it." ”

Cao Chengguang's eyes were dark, and he secretly sighed that this kid's revenge was really heavy.

stepped aside and pulled the corner of the hat open, but saw Zhang Chi standing under the steel plate, his fingers sliding along a circular trajectory, and where his fingers passed, the steel plate suddenly turned red and shiny.

Zhang Chi continuously sent the samadhi true fire in his body into the steel plate, and after a while, the steel plate of the passing part of his kung fu fingers had been heated and melted, and the golden molten steel dripped down.

Cao Chengguang was dumbfounded, this kid's energy was far beyond his imagination.

The steel plate in the circle detached from the main body and fell to the ground, which was not as thick as Cao Chengguang said, that is, about ten centimeters, Cao Chengguang was obviously exaggerated just now.

There is a cornerstone above the steel plate, Cao Chengguang was more active this time, and came behind him without waiting for Zhang Chi to propose, let Zhang Chi squat down, climbed onto Zhang Chi's back, put the hood on Zhang Chi, and said in a low voice: "Does it feel cool with a sleeve?"

Zhang Chi smiled: "Cool crooked!"

Cao Chengguang was also very interesting, today he was fortunate to pull this kid together, and with the cooperation of the two, he successfully opened the passage, and he definitely couldn't do it by himself.

Cao Chengguang said: "Climb up, I'll help drill out of the earth, but I don't know if it's a blessing or a curse outside." "Although I am in the underground of the prison, I don't know the exact location outside, and if I get into the guard room, I will be caught in the net.

Zhang Chi smiled: "My luck shouldn't be too bad." ”

Cao Chengguang said: "Don't we look like we're embarrassed?

Zhang Daxian climbed up, with the experience just now, the feeling of Tu Dun was like walking in a swamp, and Cao Chengguang had the ability to change the structure of the soil and stone layer in a short period of time. The remaining cornerstone layer was less than two meters, Zhang Chi didn't have much effort to drill out, he believed that Cao Chengguang would definitely not choose a dangerous place like the guard room, this old fox was very shrewd.

Digging out to take a look, they found themselves in an empty cell.

Zhang Chi put down Cao Chengguang, Cao Chengguang pointed to the iron fence and signaled Zhang Chi to melt the door lock, they could enter the main passage of the cell when they went out, at this time there was a jailer patrolling, the two hurriedly stood against the wall, the jailer walked over from here with a lantern, and he didn't look at it, after all, there were no prisoners in this past room, of course, there was no need to check it repeatedly.

When the jailer walked away, Zhang Chi drilled out directly from the gap in the iron fence, Cao Chengguang was stunned for a moment, it turned out that the width of this fence was so large, he didn't even see it, he also learned to drill like Zhang Chi, his head was blocked by two iron fences, and the head of this thing was smaller than me?