Since every item had passed through Qi Haoran's hands, it meant they were safe before he handed them to Mu Yangling. Qi Xiuyuan didn't believe that after the items reached the shrewd Mu Yangling's hands, someone could stuff something into the bag without her knowing.
As the East Hall was Little Treasure's residence, Qi Xiuyuan and Li Jinghua had always ordered the guards to guard this place strictly. From the palace maids and eunuchs who served Little Treasure personally to the young eunuchs who swept outside the hall, they were all carefully selected by them. If one of them could sneak things into the East Hall, they did not have to wait for this opportunity. They could do it at any time.
If it were any of them, Little Treasure would be long gone by now.
Therefore, Qi Xiuyuan was more inclined to believe that the item was sneaked in on the way from the Hall of Rising Sun to the East Hall.