At the junction ahead, soft red lighting illuminated a left and right split. As Alice reached it, a shock wave lifted her from the deck and dashed her back against the steel floor. The first explosion was echoed by a second, smaller but longer. The mine had ignited something else, maybe a power conduit. The noise was a physical force that shook her, vision flickering. Emergency lights flashed, flared, cut out. She’d lost her visors somewhere, and now the dark was absolute. Her lungs filled with choking black smoke, and she dry retched onto the cold metal floor.