I haven't read this book yet, but I'm hoping to when it comes out. It is called The five fists of science where Mark Twain and Nikolai Tesla collide with Thomas Edison and Morgan, an evil science cabal merging the Black Arts and the Industrial Age. I'm interested because David Bowie is playing Nikolai Tesla in the movie version of The Prestige, which I mentioned here a couple of months back. Yes, it all comes back to the thin white duke.