She originally guessed that the woman in the sack must be the maid who had harmed the Madam of the Lu Residence, but the age didn't seem to match; she wondered who it could be?
Gu Youyou looked at the Madam of the Lu Residence, puzzled. The Madam glared fiercely at the woman, spat out disgustingly, and said, "This is the daughter of that lowlife who harmed me. After that lowlife committed suicide, I could only interrogate her for the poisonous recipe, but unexpectedly, she's also a tough nut to crack. She refuses to talk and even says she will only speak to you, Doctor Gu."
Gu Youyou was even more baffled as she looked at the woman, who had been beaten beyond recognition.
Although the woman had been severely beaten, there was not a trace of fear in her eyes; instead, a sort of excited madness when she looked at Gu Youyou.
Gu Youyou's first thought was of terms like "perverse poison doctor."