Hogfather - Anthropomorphic

'What do you mean dead?' Susan demanded. 'How can the Hogfather be dead? He's... isn't he what you are? An-'

ANTHROPOMORPHIC PERSONIFICATION. YES. HE HAS BECOME SO. THE SPIRIT OF HOGSWATCH.

'But... how? How can anyone kill the Hogfather? Poisoned sherry? Spikes in the chimney?'

THERE ARE... MORE SUBTLE WAYS.

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Hogfather - p88