A Ritual Chamber archival film still, not an engraving: a near-empty institute room with high walls carrying the cream-and-dark stepped-cross institute tile. At center, a simulated room specimen is split by a camera cone; inside the visible cone, furniture moves smoothly, while the off-screen half hangs motionless in amber like abandoned stage props. Hard chiaroscuro, slate-blue dominant grade, one concentrated phosphor-green accent as three small monitor vials. The hexagonal honeycomb lattice is the floor beneath the specimen; one mis-struck Bureau seal on a file tag. Numbered callouts: (1) observed motion, (2) frozen state core, (3) camera boundary. One detail wrong: a clock ticks only when watched. Output in exactly 1122 x 1402 px, 4:5 portrait ratio.