The voice seemed to echo through the hall, and Nancy looked up.

If there were speakers attached to the wall or ceiling, they were well hidden amongst the drapes and tapestries that adorned the walls. The ceiling, perhaps fifty feet overhead was mainly glass and the stars in the night sky were minutely distorted by the warping effect of the glass. 

“Nancy,” the voice repeated.

Nancy looked around at the others in the hall. They appeared to move...