Lady Audley's Secret by Mary Elizabeth Braddon Coaster. Coffee Mug Coaster with Lady Audley's Secret book design, Bookish Gift, Literary Gift. Lady Audley's Secret is a sensation novel by Mary Elizabeth Braddon published in 1862. This "Lady Audley's Secret" book-themed mug coaster would make a great gift for any book and coffee lover! Printed on a hardboard mug coaster. Product Details: - High-density fiberboard with a glossy finish - Size 4" x 4" with rounded corners