There are no rooms in this house, only the space beneath its roof, which is confined and quiet save for the faint voices emitting from speakers to share stories. Painted bright red and trimmed with a black tar surface, “The Oracle of Lacuna” is an interactive installation, resembling a roof, that artist Heather Hart installed at Storm King Art Center as a site to contemplate and listen to largely overlooked oral histories. Sitting at the base of a gentle slope, on an open field in the sculpture park’s north wood, it is an unmistakably domestic structure: the crowning feature of a clapboard house, complete with shingles, dormer windows that serve as doors, and a chimney into which you can poke your head.