The Hangman's Revolution: 2 (W.A.R.P.)

FBI agent Chevie Savano is trapped in a nightmare future. Unless she can return to nineteenth-century London and change the course of history, millions will die. Luckily she has Riley the boy magician and a Victorian gangster with lovely hair to help her battle two crazed villains, who have brought the military technology of the future back in time – with potentially disastrous consequences. The stakes are higher than the hangman's noose and only Chevie can save the day. Assuming she can avoid being killed by a couple of psycho warrior-nuns first ...