Chapter: Emperor Kangxi’s investigation.
During these past days, someone would run in to announce some good news. Kangxi was almost immune to it, thus he didn’t blame Shengfang Liu for breaking into the Heavenly Purity Palace without announcing himself. He asked in a heavy voice, "What is the great news, Aiqing[1]?”
"Emperor, please have a look. This subject accidentally got his hand on a medical book which recorded the prevention and treatment of smallpox, it can prevent smallpox! This is a blessing to the great Qing!" Liu Shengfang was flushed with excitement.