crystal ball

But there isn’t yet such a thing as a crystal ball.

“Maybe a crystal ball could tell us,” Cassiopeia said.

“And how did you know to find me at Swanburne? Surely there was a crystal ball involved.”

He folded his hands and pleaded in a little girl’s voice: “‘Old Timothy, please, look in your crystal ball and tell me: How will it all turn out?’

“It was only a metaphor, I am sure! But why do you ask? Surely you do not put any stock in curses and crystal balls and such, do you?”