What is the author's style in The Heretic's Daughter: A Novel by Kathleen Kent?

The language is that of English colonists in the late 17th Century, before the American Revolution, rendered convincingly by the author in both direct conversation and in her narrative of events. Although not peppered with "thees" and "thous" of Quaker or Mennonite colonies, the language nevertheless displays subtleties of expression that suggest a much earlier, more formal time when speech seems unduly indirect and prolix to modern eyes and ears. In addition the speech of Thomas Carrier, patriarch of the family, is flavored with a Gaelic bent reflecting the fact he is a Welshman.