"It's the type of poison from mixing inconspicuous herbs." Nan Hua looked at her Master then lowered her gaze. "It's from flowers."
"Flowers?" The doctor at the back was looking at Nan Hua with disbelief. "Brat, are you sure that you have the necessary knowledge and not only spouting nonsense?"
Nan Hua didn't know the name of those flowers in this world as she had noticed that some names changed when she learned medicine with her Master. She could only look at her Master. "It's the type of black flower. If inhaled with the incense that used white flower as the main material, it'll generate toxin within the body. In long term period, it'll be deadly."
"What nonsense are you saying… there are no…"
"It's called Night Flower as for the incense." Traveling Doctor Liu looked at the incense at the table nearby and pressed it to put it out. "It's the White Powder and also the type of incense I sensed from the moment I enter this room."