The two murderers arrive at their hiding place, and suddenly a third murderer joins them, claiming to have been sent by Macbeth. They wait for Banquo to show up, knowing that he will pass by here. Banquo and Fleance arrive and are attacked by the murderers, who manage to kill Banquo, but Fleance escapes (the witches predicted that Banquo would be father to a line of kings, but not be king himself, so as long as Fleance lives, what they said can be true). The murderers run away, and plan to report to Macbeth what theyve accomplished.
To come on stage.
Its clear from what has gone before that Macbeth was plotting with only two murderers; it has never been made clear where the Third Murderer comes from. Was it just a mistake? The First Murderer is unaware that the two murderers were to be joined by a third it wasnt discussed when they were plotting with Macbeth, earlier. Is the Third Murderer Macbeth himself, in disguise?
Who sent you here to join us?
He (Macbeth) doesnt need to worry (mistrust) that we wont do our jobs. He sent us here (he delivers / Our offices), and we know what we need to do.
Then join us. Theres still some daylight left (remember that the play would have been performed in the afternoon, in broad daylight, so its helpful to establish that in the scene, its almost night time). Its almost sunset (the west still glimmers with some streaks of day). Now is when the late traveler hurries (spurs his horse) to reach the inn as quickly (apace) as he can traveling at night was dangerous, as everyone knew; there were robbers and murderers, like these, on the road. Banquo (the subject of our watch, the reason were here) is coming.
Listen!
We hear Banquo from offstage. He has not yet come onto the stage, so we cannot see him yet.
Banquo is asking someone for a light, a torch.
Then it must be he. The rest of the the guests expected at the banquet are already there.
His horses are walking around.
We can assume that Banquo and Fleance have dismounted, and are walking with their horses.
And heres the reason. Banquo usually does this, and so does everyone else walk this last mile to the palace, rather than ride.
We assume a pleasant approach, an inviting walk, to the castle.
The Second Murderer calls out that he sees some light, Fleances torch.
Thats him.
Get ready.
Banquos casual comment shows that hes unaware of the waiting murderers.
Lets do it.
They attack Banquo.
Treachery! Run, Fleance, run! You may be able to avenge this.
(Speaking to a murderer:) You slave! (This was a great insult.)
Who put out the light?
Wasnt that what we were supposed to do? Wasnt that the plan?
Weve killed only one. The son has escaped.
Weve only done half of what we were supposed to do.
Well, lets leave and report (to Macbeth) what weve accomplished.
There is, presumably, no practical way for them to chase Fleance down in the dark.
In an aside, the character speaks privately to himself for a moment, or directly to the audience, or privately to some (but not all) of the other characters present.
As a matter of convention, an aside is always a true statement of what the character thinks. A character speaking in an aside may be mistaken, but may not be dishonest.
An aside (again as a matter of convention) cannot be heard by those not spoken to.
The character leaves the stage.
Latin, literally they leave. The Murderers leave the stage.
Pronounced EX-ee-uhnt.
Latin, literally they leave. Most of the players leave the stage, leaving Macbeth alone with an attendant.
Pronounced EX-ee-uhnt.
Latin, literally they leave. Everyone leaves the stage.
Pronounced EX-ee-uhnt.