Behind the famous rhyme lies a murderous conspiracy that goes far beyond Guy Fawkes and his ill-fated Gunpowder Plot. In a desperate race against time, spy Christian Hardy must uncover a web of deceit that runs from the cock-fighting pits of Shoe Lane, to the tunnels beneath a bear-baiting arena in Southwark, and from the bad lands of Clerkenwell to a brutal firefight in The Globe theatre. But of the forces ranged against Hardy, all pale beside the renegade Spanish agent codenamed Realm.