It's Mother Xia, who had been by the side of the Empress Dowager.
She had been serving the Empress Dowager since she was either the Crown Princess or the Crown Princess Consort. She held a high status within the entire Imperial Palace.
She walked into the inner hall, knelt properly, and saluted to the Empress, "Empress, the Empress Dowager has asked this slave to come over and speak a few words with the Princely Heir's wife, the Duchess of Qi!"
All eyes fell on Mother Xia, but Su Luo noticed the palace maid who knelt next to her.
It was indeed the person who previously "granted" her the sachet.
The Empress was very courteous to Mother Xia, "The floor is cold, Mother Xia. Please get up quickly. If you have something to say, just say it!"
Her gaze swept half-heartedly across the maid's face, and her heart sank abruptly.