Who said "It was the pig's head on the stick."?

This quote is attributed to Simon.

It was the pig's head on the stick. - Simon

"It was the pig's head on the stick."

Simon

Character in Lord of the Flies

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"Perhaps there is a beast."

"Evil is part of human nature."

"Maybe the beast is part of us."

"What I mean is... maybe it's some sort of animal."