Fever Crumb (Mortal Engines Quartet 5, Prequel)

The author of the best-selling and critically beloved "Mortal Engines" quartet has written a stunning prequel. "Fever Crumb" is set a generation before the events of Mortal Engines, when cities are just beginning to devour each other. Is the mystery of Fever, adopted daughter of Dr. Crumb, the key to the secret that lies at the heart of London?