Fan Xian was not discovered in the process of pretending to be a eunuch and returning the key. He successfully stole the key and left the Empress Dowager's bedroom without arousing any suspicion. To avoid being discovered, Fan Xian made a fake key and put it back in its original place. Thus, Fan Xian was not discovered in the process of returning the key.

Fan Xian's disguise as a eunuch was not discovered. He successfully stole the key and returned it to the palace without arousing the Empress Dowager's suspicion. Fan Xian had succeeded in both stealing and putting the key back.
When Fan Xian went to return the key, he was not discovered. He successfully stole the key and left the Empress Dowager's bedroom without arousing any suspicion. Fan Xian also made a fake key and put it back in its original position to avoid being discovered by the empress dowager. Thus, Fan Xian was not discovered in the process of returning the key.
Fan Xian's theft of the key was not discovered. In Joy of Life, Fan Xian successfully stole the key and put it back in the Palace. Although he was shot by Yan Xiaoyi during his escape, Fan Xian cleverly broke the arrow and was not injured. Thus, Fan Xian had succeeded in both stealing and putting the key back.
Fan Xian's theft of the key was not discovered. In Joy of Life, Fan Xian successfully stole the key and put it back in the Palace. Although he was shot by Yan Xiaoyi during his escape, Fan Xian cleverly broke the arrow and was not injured. Thus, Fan Xian had succeeded in both stealing and putting the key back.
Fan Xian went to return the key without being discovered. Fan Xian successfully stole the key and left the empress dowager's bedroom without being discovered. Fan Xian also made a fake key and put it back in its original place to avoid arousing the empress dowager's suspicion. Thus, Fan Xian was not discovered in the process of returning the key.
Fan Xian's theft of the key was not discovered. In Joy of Life, Fan Xian successfully stole the key and put it back in the Palace. Although he was shot by Yan Xiaoyi during his escape, Fan Xian cleverly broke the arrow and was not injured. Thus, Fan Xian had succeeded in both stealing and putting the key back.
When Fan Xian went to return the key, he was not discovered. He successfully stole the key and left the Empress Dowager's bedroom without arousing any suspicion. Fan Xian also made a fake key and put it back in its original position to avoid being discovered by the empress dowager. Thus, Fan Xian was not discovered in the process of returning the key.
Fan Xian's theft of the key was not discovered. In Joy of Life, Fan Xian successfully stole the key and put it back in the Palace. Although he was shot by Yan Xiaoyi during his escape, Fan Xian cleverly broke the arrow and was not injured. Thus, Fan Xian was not discovered in the process of stealing and putting the key back.
When Fan Xian went to return the key, he was not discovered. He successfully stole the key and left the Empress Dowager's bedroom without arousing any suspicion. To avoid being discovered, Fan Xian made a fake key and put it back in its original place. Thus, Fan Xian was not discovered in the process of returning the key.
Fan Xian's theft of the key was not discovered. In Joy of Life, Fan Xian successfully stole the key and put it back in the Palace. Although he was shot by Yan Xiaoyi during his escape, Fan Xian cleverly broke the arrow and was not injured. Thus, Fan Xian had succeeded in both stealing and putting the key back.