C630 I Agree

Even though she was uneasy, Su Yu'an had no other choice. Besides Duo'er, Jiang Tianxin had three other personal maids sent from the palace, which was enough, so Su Yu'an couldn't send more. She had warned Jiang Tianxin that these maids were likely handpicked by the palace, competent in their duties, but their true intentions were unknown.

This was just Su Yu'an's suspicion