Class is back in session... Sophronia continues her second year at finishing school in style—with a steel-bladed fan secreted in the folds of her ball gown, of course. Such a fashionable choice of weapon comes in handy when Sophronia, her best friend Dimity, sweet sootie Soap, and the charming Lord Felix Mersey stowaway on a train to return their classmate Sidheag to her werewolf pack in Scotland. No one suspected what—or who—they would find aboard that suspiciously empty train. Sophronia uncovers a plot that threatens to throw all of London into chaos and she must decide where her loyalties lie, once and for all. Gather your poison, steel tipped quill, and the rest of your school supplies and join Mademoiselle Geraldine's proper young killing machines in the third rousing installment in the New York Times bestselling Finishing School Series by steampunk author, Gail Carriger.