She witnesses and becomes caught up the intrigues of the young king's court, and later those of his sisters. As Mary, Elizabeth, and Robert Dudley use Hannah to gather information on their rivals and further their own aims, the novel can plausibly present each side in the complex story.
The story revolves around Hannah witnessing the political machinations of the young king's court and later those of his sisters, Mary, Elizabeth, and Robert Dudley.  She is used by them to gather information on rivals and advance their own agendas, allowing for a balanced portrayal of each side within the complex narrative.