The Negotiation

Seeing that Prince Lester had accepted the task, Aurora turned around. "Burn it after you finish reading."

Prince Lester bowed and then looked at the small piece of paper in his hand. It was the crude map of the Royal Palace. Since he has been staying in the Royal Palace for some time, Prince Lester was still quite familiar with the layout. 

Of course, he was not allowed to go to some places. As the prisoner, he might be allowed a certain degree of freedom, but it was not to the point where he was allowed to go to various places.

And this location…

It was the study room beside the library.

That study room belonged to the two princes and most of the time, only Prince Brian was inside. Prince Charles would not be interested to stay inside because he was too busy running away. 

At this time, Prince Brian should be inside. 

So it wouldn't be easy for Prince Charles to enter the study room.