Chemical Chamber

The story takes place in the chemistry department building of a university. The protagonist Zhang Nan is a graduate student in the Department of Chemistry and is troubled by abnormal experimental data in his graduation thesis. Zhang Nan was working overtime in the laboratory and discovered that key samples mysteriously disappeared. He began to investigate the legend of the "Chemical Chamber", looking for samples and the truth. Discover a hidden passage under an ancient bookshelf. At the end of the passage is an iron door with a combination lock. Zhang Nan tried to crack the password, but at the same time felt that he was being followed by unknown people...