It's 1958—the last year debutantes will be presented to Queen Elizabeth and officially entered into society. Lily Nicholls joins the final season to fulfill her traditional mother's wishes, although she tends to be one to stand on the sidelines with a book. For lovers of British historical fiction, this page-turner will sweep you into an elegant waltz, complete with twists, turns, and dips…full of family secrets and female friendships. (HH)