When Princess Jessica arrived at the palace, the first thing she did was instruct a old Grey to arrange for people to keep an eye on General Daiz's residence and the families of those who supported him.
In the book that her father had left behind, he mentioned Joe Baratheon so she was not surprised to see him stand up to oppose her.
After this, she asked the royal library to get the register of this family. She wanted to know the current situation and how much of an influence the family has.
After making this arrangement, she went to her bed chamber to change the clothes she was wearing.
When Jessica was done changing, she returned to her study. The guard was already waiting with the books she had requested for. "Thank you," she smiled as she collected the register and walked into her study.
The first book she read was related to her mother's family, after all, the enemy within was always the most vicious.