Empress of the Seven Hills by Kate Quinn (historical fiction)

I've also read Ms. Quinn's Mistress of Rome, and both books are fast-paced adventure romances.  Empress of the Seven Hills uses several different first-person perspectives to give a 360-degree view of the story.  In another author's hands it may not be as effective, but in Ms. Quinn's hands, this technique allows even someone who knows the story to be surprised.  This book should not be judged by its cheesy romance cover.