The rook is hidden in the cartilage near the tragus and right above the daith. It's another more modern piercing that you don't see everyday, but isn't that the point? The other good news is that the pain is similar to any other cartilage piercing, and it only takes a few months to fully heal (around six on average). Try a barbell to start, then consider some fun hoops after the piercing has had some time to heal.