The missile struck cleanly and buried its head in the concrete wall. Moving quickly, she attached the carry line to the tension wire and to the takeup reel. She hit the go button and rechecked her gear as the winch reeled in the thin line and dragged the heavier weight-carrying wire through the pulley on the attached grapnel and back to itself. When the load-bearing wire returned, she attached it to the anchored winch. She slipped the wheels of the pulley slide between the now-parallel strands of wire, snapped the cover down tight, and attached the safety wire. Reversing the winch, she tightened the line and tested the grapnel’s grip. It stayed firm at four times her weight, so she slacked the tension back.