In the shadows of a pedestrian under-pass, the approaching viewer sees a set of under-floor lights twinkling in the darkness. As they draw nearer, the viewer discovers a 70’s under-lit dance-floor pulsing silently to an unheard rhythm. Just as the viewer is about to enter the tunnel, though, the lights vanish. All that is left behind is a normal looking, tiled walkway and a drab inert floor.
If the viewer stays very still however, the apparition returns – bathing them in a warm, pulsating glow from bygone era. If the viewer attempts to dance though (or makes just the slightest of moves), the pulsing dance-floor once more vanishes into the night.