This short novella ties together the time between the end of Confessions of an Improper Bride and Secrets of an Accidental Duchess. Serena is escorting her sisters Olivia and Jessica to the Dowager Dutchess of Clayworth's ball, the very ball that caused Jonathan and Serena all sorts of trouble seven years ago. Jonathan and Serena exercise some demons at the ball, while Olivia has a run in with the Marquis of Fenwicke. But that run-in causes Olivia to discover that while she thought she didn't want any man she instead wishes to have the passion that he sister has with Jonathan.
Quick, quick, quick read, but it's give us quick insight into Olivia before her story in Secrets.