In the evening, within the Palace, the Emperor held two register books, "Do you suspect these two merchant families are related to the Zhang family?"
Shi Qing replied, "Last time, Minister Zhou's grandson caught a woman, and when we investigated, the merchant had disappeared. I have been keeping track; the businesses operated by the merchants, their business dealings, and where they are registered, I remember everything clearly. These two registered merchants operate similar businesses, and the similarities are too coincidental, I believe it warrants further investigation."
Shi Qing knew the Emperor was anxious to find the missing Zhang family, even though it was openly being looked into by Prince Qi, in secret, it still relied on spies.
The Emperor was very pleased with Shi Qing, "Send someone to investigate."
Shi Qing accepted the order and took the register books back, "Yes, your servant will surely find out everything."