The line 'Who's there?' in 'Hamlet' suggests the scene takes place in a castle due to Barnardo's role as a guard.
The line 'Who's there?' spoken by Barnardo in the play 'Hamlet' most likely shows that the scene takes place in a castle because Barnardo is a guard.
In the play, Barnardo is a guard stationed at the castle, hence his inquiry about who is there. This indicates the setting of the scene within the confines of the castle where guards are stationed.
Barnardo's question is a common guard duty protocol to identify individuals approaching the castle, aligning with the typical duties and interactions of guards within a castle setting.
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