What is the author's style in The Favored Child by Philippa Gregory?

The book is written in easy-to-follow language though there are some lapses into the English dialect of the day. As a rule, the people of the village speak much less formally than those of the city of Bath and the gentry. There are some terms that may not be immediately familiar, though their meaning is typically easily discerned. For example, Julia has The Sight. It's simply the ability to tell the future, and Julia does foretell of a terrible fire in the village and of Clary's death, as well as her attempts to drown her own child.