So Lin Cheng was sure that there must still be something here, and he didn't find it now because they didn't use the right method, but as long as he kept searching here, he believed that they would definitely find it!

With this thought, although Lin Cheng has been hit hard in the past two days, he has never had the idea of leaving, such a big city falls into his own hands, if he doesn't turn it upside down, it is not Lin Cheng's character.

Sighing helplessly, and finally glanced at the cliff in front of him that seemed to extend infinitely, Lin Cheng thought about it, and decided to continue the search, since Bai Ling had no sound for so long, then presumably she would not encounter any danger, and now according to the time on the ground, it is not less than three o'clock in the afternoon, what can she do if she does not continue to search?

As soon as he said it, Lin Cheng leaned against the wall and smoked a cigarette, then threw the cigarette butt to the ground, raised his feet and continued to walk along the cliff.

Located under the abyss of several thousand meters, this city is dark everywhere as if there is no concept of time, if it weren't for Lin Cheng raising his hand to look at his watch from time to time, it is estimated that even he would forget the existence of time.

Searching all the way along the cliff with a numb face, Lin Cheng's fingers occasionally scratched over the cliff, and the coldness of his hand made him understand that he still hadn't found the entrance to the elevator, and at the same time made him barely stay awake.

Suddenly, when the bored Lin Cheng was about to light a cigarette to refresh himself, the tip of his finger that was about to retract seemed to have touched a stumble, and his spirit suddenly perked up, and he raised the flashlight and shone it on the piece that he had just stumbled!

"Damn!"

When the dazzling flashlight shone on the stumble, Lin Cheng, who was still excited, suddenly stretched his face, it turned out that this stumbling was not a secret door switch, but a rock that protruded from the ground like it had not been polished.

"Really, what's the excitement......

Looking at the dazzling rock in front of him, Lin Cheng shook his head helplessly, and was about to continue walking, but his mind suddenly moved, and he vaguely felt that he seemed to have caught something!

“…… Wrong! ”

After thinking for a moment, Lin Cheng suddenly slapped his palms vigorously, and said secretly in his heart: "I haven't seen a single flaw on this rock wall after walking for two hours in front of me, which fully shows how good the craftsmen who polished this rock wall are, in the hands of such a group of obsessive-compulsive disorders, is it possible to allow such a flaw to exist?" ”

Thinking of this, Lin Cheng's footsteps that had been lifted out shrank back, and he returned to the rock that was not particularly abrupt, and reached out and dragged it a few times, feeling that this rock was solid as if it was one with the rock wall behind, but he was not anxious, so he held it back and forth with his hand little by little, and after a few minutes, the rock "clicked", and suddenly there was a cracking sound from the rock wall!

"There it is!"

Hearing this sound, Lin Cheng felt a burst of excitement in his heart, and as soon as he exerted his hand again, he heard a "bang" sound, and a rock was instantly pulled out of the rock wall by him!

After standing firmly, Lin Cheng raised the rock wall in his hand and looked at it carefully, only to find that this so-called 'rock wall' was the same as the rock wall at the head, and the back part was all metal, and its shape was also square and rectangular, which was obviously cut by hand.

"I can really hide it......"

Looking at the heavy piece of iron in his hand, Lin Cheng was really convinced, just now he had swept it with a flashlight when he didn't find this abruptness, but he didn't find the existence of the other party at all, if he hadn't just brushed it with his fingers later, it is estimated that he wouldn't have found the strangeness here at all!

Putting the iron block in his hand on the ground, after taking two steps, Lin Cheng suddenly turned around and picked it up and threw it into the storage capsule, because he suddenly realized that the ground in this city has a self-cleaning function, in case this large piece of iron has other uses, then if it is swallowed up when he looks for it again, he probably won't have time to cry.

After putting away the iron, Lin Cheng walked to the vacant rectangular hole in front of the rock wall with confidence, raised his flashlight to look inside, and saw that there was a red button more than twenty centimeters inside that was quietly staying there.

"Finally let Lao Tzu find it!"

The moment he saw this red button, Lin Cheng suddenly felt a burst of excitement, it had been two days since he entered the city, and for the past two days, he and Bai Ling had been rummaging around the city like headless flies, just for the thing in front of them that could tell them what had happened here!

In the excitement, Lin Cheng was about to reach out and press it, but after thinking about it, he stopped again.

Bai Ling is estimated to be still wandering around in the north of the city now, if he really opens something terrible by pressing his finger, then according to his character, he will go straight into it, and it is impossible to come out without finding something.

If he really did this, then in such a big city on almost every side, Bai Ling, who couldn't find himself, would definitely go crazy, so it was reasonable that Lin Cheng would have to bring her here and press this button together.

Thinking of it, he glanced at the entrance of the black hole, Lin Cheng directly took out the big piece of iron from the storage capsule again, and after carefully stuffing it into the hole, he took a closer look at it and saw that there was not much difference from the appearance, so he nodded reassuringly, and immediately turned around and went back to find Bai Ling.

Because the distance from Bai Ling was too far, Lin Cheng simply summoned the ice wings and flew at a low altitude in the city, but even with the help of night vision, Lin Cheng still flew thrillingly, because most of the buildings in this city are extremely strange, and a roof balcony or something will come out of some inexplicable place if it is cold, plus he flew a little fast in order to quickly find Bai Ling to press the button, and when he finally returned to the north of the city, the cold sweat on his body was almost soaked with the clothes inside.

Ignoring the sticky underwear inside, he returned to Lin Cheng in the north of the city to find a taller building, and glanced around a few times, but saw that he couldn't see Bai Ling's figure, so he cleared his throat and shouted directly: "Sweet potato sweet potato!" Potatoes call sweet potatoes! Potatoes call sweet potatoes! Hear please answer, hear please answer! ”

After shouting a few words, Lin Cheng, who felt a little tired, was about to drink saliva and rest before continuing, when he heard a sudden rush of footsteps downstairs, and at the same time, a crisp female voice also shouted to him with the same loud voice: "Sweet potato received, sweet potato received!" Shut up potatoes, potatoes shut up! ”