Description: MacBeth returns to the three weird sisters as they work spells around the cauldron.
William Shakespeare's "MacBeth"
Act 4, Scene 1
First Witch: Round about the cauldron go;
In the poison'd entrails throw.
Toad, that under cold stone
Days and nights has thirty-one
Swelter'd venom sleeping got, 1555
Boil thou first i' the charmed pot.
All: Double, double toil and trouble;
Fire burn, and cauldron bubble.