Bones' latest adversary makes his debut tonight, or at least his "work" does.

In the show's 2012 premiere - which was actually its 2011 final postponed by a month, and giving way to another lengthy hiatus after tonight - the team investigates what appears to be a murder scene at a national monument.

The only clue left is a coded message in human blood - and vertebrae, reassembled in a way that even gives Brennan pause - that will be the beginning of a scavenger hunt for the solution, courtesy of their mysterious foe.

Meanwhile, Booth and Brennan look for a new home. Man cave and girl cave required.

Watch three clips from "The Crack in the Code" below ...

Steve Marsi is the Managing Editor of TV Fanatic. Follow him on Google+ or email him here.