After entering the elevator, Lin Huang scanned the ID card, then verified his fingerprints and irises of both eyes. The elevator descended to the second floor.
He was relieved to have passed through all the verification processes.
Approximately ten seconds later, the elevator arrived at the second underground floor. Lin Huang then walked out of it.
Following the memory of the man in the glasses, Lin Huang walked towards the observation room where Chan Dou was captured.
He bumped into a few men in white coats along the way. Lin Huang followed the man in the glasses' habit whereby he ignored them directly.
He saw an old man with gray hair and two middle-aged men working on something as he walked into the observation room.
"Sir," Lin Huang greeted the old man and turned his head to look at the room behind the observation glass.
