Chu Beichen quickly figured out what to do next. He was extremely shrewd, and after so many years of experience, he could not show his emotions on his face.

He quickly realized the problem, but did not say anything. Instead, after listening to the police officer's explanation, he took Su Nian away from the police station as soon as possible.

"Schmidt, take us to the comprehensive building quickly. I suspect the child is still in that building!" Chu Beichen urged Schmidt while walking quickly.

Su Nian and Chu Beichen have been married for nearly ten years. When she heard her husband say that the child was in the complex building, she immediately felt energized and quickened her pace to catch up with him.

Schmidt was not an ordinary person. He immediately pushed the driver aside, took the keys, and wanted to drive himself. As he drove, he asked Chu Beichen,

"Chu, you don't want to alert the police, right? I have trusted subordinates who can come and help!"

Chu Beichen nodded, "Schmidt, call them over quickly, I need manpower now."

Schmidt took out his phone and mobilized people. In a blink of an eye, the three of them arrived at the parking lot. Schmidt drove himself and took Su Nian and Chu Beichen to the complex building where the accident happened.

It was already dusk, and the last rays of the sun were shining down on the complex.

Schmidt and his companions arrived at the bottom of the complex building. His men had already arrived. There were seven or eight burly men in total, all of whom had resolute expressions and quick movements.

After everyone gathered, Chu Beichen divided them into two groups. One group guarded all the stair exits, and the other group followed him underground. The underground of the complex building was the parking lot and some other ancillary facilities.

"Our goal is to find hidden empty rooms, stairwells where people can hide, etc. Do you understand?" Chu Beichen assigned the tasks.

Schmidt suddenly realized, "Beichen, do you suspect they didn't send the child away at all? Are they still staying in this building?"

"Yes, I checked the surveillance and found that the person we sent to protect the children never came out. He must have stayed with the children to protect them."

Chu Beichen believed that with Lao Cao's loyalty, he would definitely not abandon the children and escape alone.

Schmidt nodded. "Understood. I'll immediately mobilize personnel to seal off this area and bring a few police dogs!"

Schmidt is in charge of a special department with certain authority, so he dares to say this.

Chu Beichen grabbed Schmidt's hand and shook it vigorously, "I won't say much more about thanking you!"

Schmidt's men arrived quickly, and in just over ten minutes they had surrounded the place. The underground parking lot was temporarily blocked, and only two or three guides were left inside, while the rest were taken under control.

This is to prevent the kidnappers from being among the staff.

Led by a guide, the team was divided into several groups and began to search for hidden spaces under the complex building.

After this turn, everyone realized that there were many channels and tunnels under the complex building, and even more dark corners.

The crowd quickly found an abandoned elevator shaft. Due to a design change, the elevator shaft was filled and then sealed, but the police dog barked non-stop when passing by here.

Chu Beichen took out a large flashlight and looked at the sealed location of the elevator shaft. "Maybe it's here. This elevator shaft has been opened!"

Without saying a word, Schmidt immediately mobilized people with professional tools and prepared to open the seal of the elevator's emotional intelligence.

With professional manpower and tools, the elevator roof was opened very quickly. After more than ten minutes, the entrance where the elevator stopped was opened, revealing a dark cave. It turned out that although the elevator shaft was sealed, it was not completely filled.