Spray washed over them as the ventilation system sent a stray breeze in their direction. The dampness was a reminder that the waterfall was real and not just a dazzling example of special effects holography. The water cascaded from an opening concealed on the third level. The rushing torrent tumbled along huge quartz boulders from Madagascar, the rocks framed in lush tropical greenery that enhanced their translucent shine. The slope of the waterfall lessened near the first level, gentling the flow before it reached the lagoon park where Sam and Hanae walked. Tropical birds and insects flitted past, restrained from leaving the park area by their own inclination, as well as a subtle ultrasonic barrier at the park’s edge.