For weeks, the numbers on your stress gauges might look perfect, but beneath the surface, the moisture is moving, the stone is compressing, and the load is finding its true center.Hughie Cade stood in the raw, unpainted lobby of the Parcel Four development site near the West End rail line. It was 3:00 AM. The air was thick with the scent of damp masonry and curing fire-retardant foam.He didn't have his full crew with him only Koby, who was kneeling near the base of the central elevator shaft with an acoustic ultrasound receiver pressed against the concrete footer."There it is again, Hughie," Koby muttered, adjusting the headset over his ears. "A rhythmic, low-frequency shear stress. It’s not a standard settlement crack. Something is pushing back against the eastern retaining wall from the outside."Hughie knelt beside him, his calloused fingers tracing a hairline fracture that ran diagonally across the high-density foundation slab. He didn't need the acoustic receiver to know what