Ferris arrived at the substation at seven a.m. on a Thursday. Third session. He had been on time for both previous sessions and he was on time for this one. Hunter had noticed that Ferris approached the substation the way he approached the physical therapy clinic — not reluctantly, not eagerly, but with the specific purposefulness of someone attending something that required their best attention and who intended to give it. Lena was already in position at the north end of the hall. She had been there since six-forty-five, running her standard warm-up sequence — the wire board methodology adapted to the specific output level range required for the therapeutic protocol. She had developed the warm-up herself after the first session, without being told to. She had identified that transitioni

