They called the maid who served the tea that night.
It was a young girl around thirteen years old. She was dressed in a uniform with two buns styled on her hair, a usual get-up of a maidservant in the royal palace.
She was quivering as she neared the people of the investigation team. Zero observed the bowing head of a timid servant girl.
Pengfei started, "Are you the one who served the first princess' tea before she died?"
The young girl did not make eye contact as she nodded automatically, scared for her life. Pengfei then continued, "Then did you saw anyone with her?"
The young girl was frozen stiff but instantly shook her head as she remembered what she saw at the middle of the night while being ordered to serve tea to the first princess. The maidservant felt curious when she neared the door of the first princess as she heard the first princess was talking to someone but Xiu Meihui suddenly stopped her conversation as the maid announced herself.