Cinderella is a Coquettish Green Tea (57)

The suspicious figure was dressed in servant robes but had a cloth wrapped around the lower half of his face, and only his face could be seen.

Xie didn't immediately choose to go down but waited for a few more minutes until the man had entered entirely into the study to follow.

When the person snuck in, Xie Han chose to climb up to the roof, find a weak spot, and remove tiles until he could see inside the study.

With such a big thing happening in the palace, many of the servants had cleared out not to be implicated, so Xie Han didn't have to worry about being spotted on the roof, but he still tried his best to hide his figure. 

The person inside seemed to be clear about the study layout, and they didn't waste time and headed directly for the third prince's bookshelf.