The Apocalypse,aah!!!!!!!! Noo, I'm just kidding but there is a book called Hunger that I recently read having to do with the 4 horsemen of the apocalypse and it's pretty amazing. It's called Hunger and it's by Jackie Morse Kessler.
It's about this girl who is battling with anorexia/bulimia and all of a sudden she's tapped as the new Famine of the Four Horseman of the Apocalypse. Death, BTW, is AWESOME as he's portrayed very cool as a shaggy rockstar who the other horsemen find 'weird' straight out of the white riders mouth. As well as an epic showdown between two of the Horsemen (I AM NOT saying who!). This is a pretty good book as well as the second one called Rage coming out soon (Dunno though!)
The covers are pretty aren't they?! I think so :D