400
This is said by whom and in what scenario, "Come to my woman’s breasts,
And take my milk for gall, you murd'ring ministers,
Wherever in your sightless substances
You wait on nature’s mischief. Come, thick night,
And pall thee in the dunnest smoke of hell,
That my keen knife see not the wound it makes,
Nor heaven peep through the blanket of the dark
To cry “Hold, hold!” "
Who is Lady Macbeth after receiving Macbeth's letter. (I will also accept Lady Macbeth before Duncan comes to Dunsinane Macbeth's castle which would be Glamis actually.)