I still have the smell of blood on my hand from the death of Banquo.
Do everything you can to cure her.
Her problems are psychological.
Chop down branches for camouflage. I don't want Macbeth knowing how many men I have.
Macbeth believes Malcolm's castle is heavily guarded. A cry is heard later on and is revealed that Lady Macbeth is dead. Macbeth comes to the conclusion that life is meaningless and so he will not wait for Malcolm, he tells everyone to prepare for battle.
The castle seems it has been left attended.
Macbeth and Macduff fight. Macbeth's hope is lost and he is killed. Macduff brings Macbeth's head to the new king of Scotland, Malcolm.