Most of this stone is exactly as it came out of the ground. The sculptor known as N.V.M. left the boulder rough and brown on every side, then opened a single hollow and polished a figure into it: a woman in black stone, head veiled, arms falling softly.
Walk around the piece and she disappears. Stand before the opening and she is suddenly there. That is the whole idea of "Hidden," and it is why the piece rewards a spot where people move past it. The boulder is 22 inches tall and carved from spring stone.