The Eastland Chronicles

Her fingers were like snakes. The tips of each finger darted here and there across the surface of the bright glass ball as if on their own accord. Josh watched her fingers move in strange fascination. He thought he would begin to see a pattern if he watched long enough, but one didn't seem to form. He still watched it transfixed, however.
Occasionally, a finger would strike out on the other side of the ball before it got dragged back to where she was sitting.
"Interesting. Very interesting," she whispered to herself.