The boundary of the dimensional bleed was visible up close in a way it wasn't from the perimeter. Not a sharp line, not the clear seam of a Fracture threshold, but a gradient, the real world getting progressively less real over a span of about four metres until it was fully dimensional, the reflective quality complete, the air temperature on the other side noticeably lower. He stood at the edge and felt it with everything his system gave him.
Acoustic Mapping read the sound profile of the dimensional space and produced the same picture it produced inside Fractures, the particular resonance of enclosed dimensional architecture. Except this wasn't enclosed. It was open to the city sky. The resonance was wrong for an open space, bouncing and distorting as though the dimensional material was
