Fever Crumb: Mortal Engines Prequel

'Fever Crumb' is set many generations before the events of 'Mortal Engines', in whose dazzling world huge, predatory cities chase and devour each other. Now, London is a riot-torn, ruinous town, clinging to a devastated landscape and hiding and explosive secret. Is Fever, the adopted daughter of Dr Crumb, the strange key that will unlock its dangerous mysteries?