Whispers of Betrayal
"Adrin been exchanging more letters with Marquis Grilldi than before. I can't tell you the details because of Aingir's suspicions, but there might be something going on with Minardi as well."
When Carl turned away, Camilla finally provided him with some useful information.
In the original story, Adrian didn't completely trust Camilla around this time.
However, he believed she wouldn't betray him, so he entrusted her with a series of important tasks.
Despite this, Adrian noticed the subtle difference in Camilla's attitude as she followed Carl around and weighed him, and he began using Camilla while being thoroughly wary of her.
Because of this, Camilla was unable to access Adrian's important work. Adrian created a complex system to prevent Camilla from discovering information about him, and he gave her endless missions to keep her from doing anything significant.