When Prince Rodolfo's monsters attack her, Petra Kronos is spirited away to London. As she struggles to escape, Neel and Tomik sail the high seas in search of her. Though separated by many miles, the three friends draw closer together in Marie Rutkoski's sequel to The Cabinet of Wonders, called "astonishingly accomplished" by Publishers Weekly. Readers will not be disappointed in this adventure-filled novel that includes man-made monsters, the unraveling of a murder mystery, and the hunt for the Celestial Globe, which the prince of Bohemia will do anything to own.