How did the emperor know that ChristianRandPhillips was released?

In the TV series Princess Pearl, Swallow and Wei Zi turned ChristianRandPhillips's departure into a butterfly and flew away. The queen doesn't believe it. After searching the guest house, I found the props left by the shaman mage, which led to the truth of everything. Therefore, the emperor knew that ChristianRandPhillips was released by seeing the props used by the shaman.

Princess Zhu Huan tells the story of Gan Long's daughter Xia Ziwei going to Beijing to meet her long-lost father. In desperation, I met the female snitch, Swallow, and became sisters. Swallow managed to sneak into the palace for her, but mistakenly exchanged identities with Xia Ziwei, and became the "Princess Zhu Huan" in the Qing Palace, which won the favor of Qianlong.