the air, when he was about to kill Duncan. But Macbeth continued to see the ghost, and gave no heed to all they could say, while he addressed it with distracted words, yet so significant, that his queen, fearing the dreadful secret would be disclosed, in great haste dismissed the guests, excusing the infirmity of Macbeth as a disorder he was often troubled with.
To such dreadful fancies Macbeth was subject. His queen and he had their sleeps afflicted with terrible dreams, and the blood of Banquo troubled them not more than the escape of Fleance, whom now they looked upon as father to a line of kings who should keep their posterity out of the throne. With these miserable thoughts they found no peace, and Macbeth determined once more to seek out the weird sisters, and know from them the worst.
He sought them in a cave upon the heath, where they, who knew by foresight of his coming, were engaged in preparing their dreadful charms, by which they conjured up infernal spirits to reveal to them futurity. Their horrid ingredients were toads, bats, and serpents, the eye of a newt, and the tongue of a dog, the leg of a lizard, and the wing of the night-owl, the scale of a dragon, the tooth of a wolf, the maw of the ravenous salt-sea shark, the mummy of a witch, the root of the poisonous hemlock (this to have effect must be digged in the dark), the gall of a goat, and the liver of a Jew, with slips of the yew tree that roots itself in graves, and the finger of a dead child: all these were set on to boil in a great kettle, or cauldron, which, as fast as it grew too hot, was cooled with a baboon's blood: to these they poured in the blood of a sow that had eaten her young, and they threw into the flame the grease that had sweaten from a murderer's gibbet. By these charms they bound the infernal spirits to answer their questions.
