"Oh!" Because Scar was standing behind Seonan and the crack was very small, he didn't notice it, and when he saw Seonan talking at this time, his eyes lit up and walked quickly in front of Seonan.

"Where?" Scar said in front of Seongnam.

"This." Seongnam pointed to a thin mark on the crystal wall in front of him. Standing in the distance, the scar hadn't seen it yet, and only after bowing his head slightly could he see the trace of the thin line on the crystal wall.

"It seems like it's a door." Scar looked up and down carefully.

"Shall I push and see?" As he spoke, Seongnam pressed his hands on the cracked place and pushed forward with all his strength. Unexpectedly, Seongnam exerted all his strength, but the crystal in front of him was motionless, and the door did not appear as imagined.

"Whew! It doesn't seem to work. Seongnam gasped and looked at the untouched crystal wall in front of him, and said helplessly. Wrong! There is movement! It's just that there's so little movement that you don't notice. Scar looked down and looked at it carefully, then was sure. Is it? Chengnan looked down and took a closer look, and sure enough, he found that the originally very small crack had become a little bigger, about two centimeters wide, and it was really difficult to find if he didn't look carefully.

"Let's push together!" Scar stood on the south side of the city, rolled up his sleeves and said. "Good!"

"One, two, three, force!" With Scar's roar, Seongnam and Scar used all their strength almost at the same time.

"Wow!" With their efforts in the south of the city, a gurgling sound sounded, and the crystal wall finally cracked a crack about seven or eight inches.

"Trying hard!" Chengnan saw the crystal wall crack, and immediately knew that what he guessed was right, and immediately said excitedly.

"Ahh Seongnam and Scar blushed and made the final sprint. "Boom.. Yikes! As the south of the city came, their afterburner gurgling suddenly came from the end.

"Whew. Call! In the end, Seongnam finally couldn't stand it and sat on the ground in prostration, and Scar was tired and lowered his head and gasped.

"It's really a door!" Although Chengnan sat down on the ground, his eyes were staring at the place he had just pushed and said excitedly, at this time, the place that had just been cracked had been opened, although it was only about twenty centimeters wide, but this width could still be entered by himself sideways.

The door to enter the crystal wall really opened, and Chengnan stood up excitedly and gestured to Zhang Mei and them on the other side, meaning to let them stand there and not move themselves, and go over to find them immediately. But Chengnan doesn't know real sign language, Zhang Mei on the other side can't understand what Chengnan wants to express, Zhang Mei is still anxious to look at Chengnan while gesturing something, but unfortunately Chengnan is also confused. In the end, in desperation, Cheng Nan gritted his teeth and ignored Zhang Mei, they were going to go in first, otherwise there would be no communication between the two sides here, and it would be a waste of time to be here, so it was better to use this time to find a passage as soon as possible to meet with Officer Zhang and them.