1929: Girls are going missing in Melbourne. Little, pretty golden-haired girls. And not just pretty. Three of them are pregnant, poor girls from the harsh confines of the Magdalen Laundry. People are getting nervous.

Polly Kettle, a pushy, self-important Girl Reporter with ambition and no sense of self preservation, decides to investigate--and promptly goes missing herself. It's time for Phryne and Dot to put a stop to this and find Polly Kettle before something quite irreparable happens to all of them. It's a tale of piracy and dark cellars, convents and plots, murder and mystery . . . and Phryne finally finds out if it's true that blondes have more fun.