Fan Xian knew the key was with the empress dowager because Wu Zhu had told him. Wu Zhu took Ye Qingmei's box from the empress dowager, but he forgot to take the key. To avoid arousing the empress dowager's suspicion, Fan Xian made a fake key and put it back in its original place. After Fan Xian learned from Wu Zhu that the key was in the empress dowager's hands, he knew that the truth would be revealed sooner or later.
According to the search results provided, it was impossible to determine if the empress dowager knew about Fan Xian stealing the key.
According to the search results provided, it was impossible to determine if the empress dowager knew about Fan Xian stealing the key.
According to the search results provided, it was impossible to determine if the empress dowager knew about Fan Xian stealing the key.
According to the search results provided, it was impossible to determine if the empress dowager knew about Fan Xian stealing the key.
According to the search results provided, it was impossible to determine if the empress dowager knew about Fan Xian stealing the key.
According to the search results provided, it was impossible to determine if the empress dowager knew about Fan Xian stealing the key.
According to the search results provided, it was impossible to determine if the empress dowager knew about Fan Xian stealing the key. Although some documents mentioned that the Qing Emperor might know Fan Xian's identity, there was no clear information on whether the empress dowager knew the exact circumstances of Fan Xian stealing the key. Thus, it was impossible to determine if the empress dowager knew Fan Xian had stolen the key.
According to the search results provided, it was impossible to determine if the empress dowager knew about Fan Xian stealing the key.
According to the search results provided, it was impossible to determine if the empress dowager knew about Fan Xian stealing the key.
According to the search results provided, it was impossible to determine if the empress dowager knew about Fan Xian stealing the key. Although some documents mentioned that the Qing Emperor might know Fan Xian's identity, there was no clear information on whether the empress dowager knew the exact circumstances of Fan Xian stealing the key. Thus, it was impossible to determine if the empress dowager knew Fan Xian had stolen the key.