Once the toast of good society in Victoria's England, the extraordinary conjurer Edward Moon no longer commands the respect that he did in earlier times. Still, each night he returns to the stage of his theater to amaze his devoted, albeit dwindling, audience, aided by his partner, the Somnambulist—a silent, hairless, hulking giant who, when stabbed, does not bleed. But these are strange, strange times in England, with the oddest of sorts prowling London's dank underbelly. And the very bizarre death of a disreputable actor has compelled a baffled police constabulary to turn once again to Edward Moon for help—inevitably setting in motion events that will shatter his increasingly tenuous grasp on reality.

With a gallery of vividly grotesque characters, a richly evoked setting and a playful and highly literate style, this is a literary fantasy from the author of 'The Somnambulist'. In an earlier century, Queen Victoria made a Faustian bargain, signing London and all its souls away to a nefarious, inhuman entity. Now, generations later, the bill has finally come due. An amiable, unambitious London file clerk, Henry Lamb leads an unremarkable life—until the day he learns he's expected to assume the covert responsibilities of his universally despised, now comatose grandfather. London is at war, and a shadowy organization known (to a very few) as the Directorate wishes to recruit Henry to the cause. All he has to do is find "the girl," save the world from the monster Leviathan, and defeat the unspeakable evil lurking in the cellar of 10 Downing Street: the serial-slaying schoolboy twins known as the Domino Men.