China turned off the radio, then crossed the hall from her apartment and walked through the library, taking into account the shifting stacks that arranged themselves according to necessity.
It was an old trick, showy and gauche, and somewhat misleading. The stacks actually shifted in response to the mood of the room. If the mood was hostile, the books on combat would move to the front; if it was paranoid, the books on secrets and how to keep them would be foremost. It wasn’t a sophisticated trick, but China kept it because it reminded her of the library she’d had in her old family home.