Cab driver Francis "Chas" Chandler leads an unremarkable existence, tagging along with John Constantine as his unofficial chauffeur. But Chas is a master of "The Knowledge" - the elaborate system of routes and landmarks which every London cabbie must memorise. Now Chas must put The Knowledge and his own wits to the test. A demon is on the loose in London, but Constantine is nowhere to be seen. Chas alone must save the world from destruction - whilst battling his own demons of middle age. With tales of terror by Simon Oliver (The Exterminators, Gen 13) and groundbreaking artwork by Goran Sudzuka (Y: The Last Man, Lady Constantine).