“Granny Weatherwax looked out at the multi-layered, silvery world.
“Where am I?”
INSIDE THE MIRROR.
“Am I dead?”
THE ANSWER TO THAT, said Death, IS SOMEWHERE BETWEEN NO AND YES.
Esme turned, and a billion figures turned with her.
“When can I get out?”
WHEN YOU FIND THE ONE THAT’S REAL.
“Is this a trick question?”
NO.
Granny looked down at herself.
“This one,” she said.”
―
Terry Pratchett,
Witches Abroad