We clambered down a final staircase, a little wider than the rest, and came out onto a glassed-in gantry over a converted cargo cell. Looking down, I saw one of the arenas Ortega and I had passed in the electromag train last week, but now the plastic coverings were off the killing ring, and a modest crowd had assembled in the forward rows of each bank of plastic seating. Through the glass I could hear the sustained buzz of excitement and anticipation that had always preceded the freak fights I'd attended in my youth.