In Book 6 Emily, with her husband and three children has traveled to Paris for the 1900 Paris Exposition. She could only do it thanks to the sponsorship of Bertha Palmer who has hired her as social secretary. Mrs. Palmer is the only woman in the US delegation and her fame and money inevitably make her the subject of envy. When Berthaโs famous pearls disappear, and then a young milliner is found dead in the House of Worth exhibit, Emily must prevent disaster by solving the crimes, even if she is in a foreign city. Her adventure takes her behind the scenes at the House of Worth and into the art world of Mary Cassatt and Edgar Degas.