In the end, the Wuliang Temple said that Daoist Master Yun Qiu had left three days ago, but the temple had recorded his ultimatum.
According to the law, any traveling Daoist priest had to rely on an ultimatum. This ultimatum was equivalent to a monk's residence permit. The ultimatum detailed the monk's hometown, common name, age, affiliated temple, and so on.
With the ultimatum, the officials could investigate the origins of the monks.
The Wuliang Temple was quite cooperative. They even got the Daoist priest in the temple to draw the old Daoist's appearance. The portrait was also presented to the Emperor and Chu Yi.
"The Eldest Prince has already gotten the Embroidered Uniform Guards to look for it." Gu Yuan's lips curled up slightly, and a cold light flashed in his eyes.
As long as Yun Qiu was a proper Daoist, there would always be clues if the warning was true.