Tucking the touchslate under one arm, Mia left the bathroom and walked to her chosen curtain unit. She stepped inside and shut and sealed the curtain behind her. The fabric stiffened with a sudden top-to-bottom shudder, and the machine woke itself around her. The stiff curtain fabric turned a uniform shade of cerulean. Much more of reality vanished, and Mia stood suspended in a swimming sky blue virtuality. Immersive virtuality—except, of course, for the solid floor beneath her feet, and the ceiling overhead, an insect-elbowed mess of remote locators, tracking devices, and recording equipment.