Macbeth had a wife, to whom he communicated the strange prediction of the weird sisters, and its partial accomplishment. She was a bad, ambitious woman, and so as her husband and herself could arrive at greatness, she cared not much by what means. She spurred on the reluctant purpose of Macbeth, who felt compunction at the thoughts of blood, and did not cease to represent the murder of the king as a step absolutely necessary to the fulfilment of the flattering prophecy.
It happened at this time that the king, who out of his royal condescension would oftentimes visit his principal nobility upon gracious terms, came to Macbeth’s house, attended by his two sons, Malcolm and Donalbain, and a numerous train of thanes and attendants, the more to honour Macbeth for the triumphal success of his wars.
The castle of Macbeth was pleasantly situated, and the air about it was sweet and wholesome, which appeared by the nests which the martlet, or swallow, had built under all the jutting friezes and buttresses of the building, wherever it found a place of advantage; for where those birds most breed and haunt, the air is observed to be delicate. The king entered well-pleased with the place, and not less so with the attentions and respect of his honoured hostess, lady Macbeth, who had the art of covering treacherous purposes with smiles; and could look like the innocent flower, while she was indeed the serpent under it.