Librarian Phoebe O'Dunn deals in stories, but her passion for history has taught her that happy endings are rare. Her life in Knights Bridge, Massachusetts, is safe and uneventful until she discovers the hidden room. Among its secrets is a cache of vintage clothing, including a spectacular gown perfect for a gala masquerade in Boston. In the guise of a princess, Phoebe is captivated by a handsome swashbuckler who's also adopted a more daring persona....