Hogfather - Eye

'It's just glass, all right?' said the one known as Catseye, signaling a waiter for four beers and a glass of milk. 'And he's paying ten thousand dollars each. I don't care what kind of eye he's got.'

'I heard it was made of the same stuff they make them fortune-telling crystals out of. You can't tell me that's right. And he looks at you with it,' said the first speaker. He was known as Peachy, although no one had ever found out why.

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Hogfather - p36