This print was a digital collage, made by layering several images. It depicts a passageway with the lower panel of the Large Glass superimposed as if it was hanging on the wall. The young woman was originally photographed reading by the window. As Hamilton explains, ‘I flipped and laterally reversed her. It is not a reflection, she is ghosted (maybe 70% transparent) into the glass.’ The phrase ‘mirrorical return’ derives from Duchamp’s notes in the Green Box, describing elements that were to have travelled ‘mirrorically’ from one part of the composition to another. It relates to Duchamp’s interest in the fourth dimension.