Now, I've simplified the story a bit so it makes sense, because quite honestly, no one has any idea what's going in Shakespear stories :D
Witch 1: "Wooooooo! I'm a witch! Fair is foul, foul is fair, ect. ect."
Witch 2: "You shall become thee new Thane of Cawdor!"
Witch 3: "Meow!"
MacBeth: "Yay! But go away!"
Banquo: "I don't like witches they scare me."
And that's what happens in that scene :) Man, that was confusing! And stressful. We should just spend the rest of the time looking at pictures of the scene...
Those of you who are more observant will have noticed this camoflague rope pulled tight across the grass. Well when I looked at the vig I thought it was missing something "exciting", so I added a hidden feature. This rope is a trip wire. If anyone comes too close to the witches then the rope gets tugged...
...and goes round this hook...
...and up the tree. It's onnected to a crossbow which is positioned towards the rope.
The final pic is of Macbeth and Banquo. As you can see, I don't own many castle sets :)