Poisoning

"Second Young Mastetr, this was just delivered by the guards. They said it was Third Young Mastetr's woman."
The maidservant didn't dare to talk nonsense and answered respectfully.
Hearing the maid's words, the second Young Mastetr nodded slightly, knowing that his guess was correct!
"Okay, all of you go out! I have something to ask this woman."
Lu Mo said calmly.
"Young Mastetr, this?
Isn't this okay? "
The maids panicked, wondering how this could be possible.
"why...