On his way back to the castle, Banquo and Fleance are jumped but three murders (hired by Macbeth). Banquo is the first death to actually happen on stage and Fleance escapes. The murders must tell Macbeth the job is only half done.
The west yet glimmers with some streaks of day. Now spurs the lated traveler apace to gain the timely inn, and near approaches the subject of our watch.