Lucifer Box -- portraitist, dandy and terribly good secret agent -- is feeling his age. He's also more than a little anxious about an ambitious younger agent, Percy Flarge, who's snapping at his heels. Assigned to observe the activities of fascist leader Olympus Mons and his fanatical followers, or "Amber Shirts," in F.A.U.S.T. -- The Fascist Anglo-United States Trinity (an acronym so tortuous it can only be sinister) -- in snowbound 1920s New York, Box finds himself framed for a vicious, mysterious murder.
Using all of his native cunning, Box escapes aboard a vessel bound for England armed with only a Broadway midget's suitcase and a string of unanswered questions: What lies hidden in the bleak Norfolk convent of St. Bede? What is "the lamb" that Olympus Mons searches for in his bid for world domination? And what has all this to do with a medieval prayer intended to summon the Devil himself?