A corrupt countess A spy in danger And an assassin at large The fifth title in Genevieve Cogman's witty and wonderful Invisible Library series, The Mortal Word is a rollicking literary adventure. Peace talks are always tricky, especially when a key diplomat gets stabbed. This rudely interrupts a top-secret summit between the warring dragons and Fae. As a neutral party, Librarian-spy Irene is summoned to investigate. She must head to a version of 1890s Paris, with her assistant Kai and her detective friend Vale, where these talks are fracturing. Here, she must get to the bottom of the attack – before either the peace negotiations or the city go up in flames. Suspicions fly thick and fast and Irene soon finds herself in the seedy depths of the Parisian underworld. She’s on the trail of a notoriously warlike Fae, the Blood Countess. However, the evidence against the Countess is circumstantial. Could the killer be a member of the Library itself?