Francis and Colton moved along the west wall at a low run. The chain link fence was four feet to their left. The building wall was two feet to their right. Eight feet of frozen ground between the two, unlit, the facility's exterior flood lights angled outward toward the road and not this side. Whoever had designed the security lighting had not anticipated someone using the gap. Colton was ahead of him, moving the way he always moved when a thing was decided, without hesitation and without noise. Francis matched his pace. The ground was hard and flat under the snow and their boots made almost nothing. Fifty yards. Francis could hear the vehicles now. Two diesel engines idling, the low steady sound of machines waiting to be used. He could hear voices too, faint, male, coming from inside

