For a split second, the space around Werner tears in half, as though the last molecules of oxygen have been ripped out of it. Then shards of stone and wood and metal streak past, ringing against his helmet, sizzling into the wall behind them, and Volkheimer's barricade collapses, and everywhere in the darkness, things scuttle and slide, and he cannot find any air to breathe. But the detonation creates some tectonic shift in the building's rubble, and there is a snap followed by multiple cascades in the darkness. When Werner stops coughing and pushes the debris off his chest, he finds Volkheimer staring up at a single sheared hole of purple light. Sky. Night sky. A shaft of starlight slices through the dust and drops along the edge of a mound of rubble to the floor. For a moment Werner inhales it. Then Volkheimer urges him back and climbs halfway up the ruined staircase and begins whaling away at the edges of the hole with a piece of rebar. The iron clangs and his hands lacerate and his six-day beard glows white with dust, but Werner can see that Volkheimer makes quick progress: the sliver of light becomes a violet wedge, wider across than two of Werner's hands. With one more blow, Volkheimer manages to pulverize a big slab of debris, much of it crashing onto his helmet and shoulders, and then it is simply a matter of scrabbling and climbing. He squeezes his upper body through the hole, his shoulders scraping on the edges, his jacket tearing, hips twisting, and then he's through.