This is a spy thriller that keeps you guessing who the Archer is well into the last half of it. I actually kept track of my guesses at each point something new about the Archer was revealed, and I have to admit that I was continually way off-base with my guesses. 
 If you're looking for lots of sex between lots of tough assassins, you certainly won't be disappointed, but the story that winds them up together is really engaging and twists and turns regularly. It's a roller coaster of the best kind. I'd love to eventually see a sequel to this one. 
 Edit: It has re-readability for me, so I'm upping it to 5 stars. =) 
 Edit: Don't expect monogamy between your leads in this one. Everyone sleeps with everyone else at least once. It's quite entertaining to figure out who'll end up with whom next. However, that's not to say there's not romance or actual caring between some of the leads. There are actually relationships here, even if they're as open as the Grand Canyon.