Girl on an Altar Theme or Issue

Comparative · 2027 & 2028 Leaving Cert

Theme or Issue asks you to isolate a single idea a text is arguing about and trace it across the whole work. Girl on an Altar gives you an unusually clear one: what a girl’s life is worth against a man’s ambition, and what happens to a family, and a woman, once that question has been answered the wrong way.

What Theme or Issue Asks of You

This mode rewards a tight, defensible claim rather than a broad tour of “themes in the play.” Pick an issue you can state in a sentence, sacrifice, revenge, the cost of patriarchal power, and then build paragraphs that trace how Carr develops it from the opening scene through to the ending. Comparative answers need you to hold this same issue up against your other texts, so the clearer your grip on the single thread running through Girl on an Altar, the easier that comparison becomes.

The Sacrifice of a Daughter

The central issue of the play is announced in its very first act: a father chooses his war over his child. Agamemnon frames the killing as a political necessity forced on him by circumstance beyond his control.

If we don’t give them Iphigenia there’ll be a bloodbath here tomorrow. They’ll depose me, slaughter us all, make Achilles their new king.Agamemnon, Act One, Scene One

Cilissa’s report of the act itself strips away any comforting distance, giving the audience the physical horror that Agamemnon’s language works so hard to avoid.

He’s standing on the altar, mask on, obsidian knife in his hand, Iphigenia raised to the skies in his right armCilissa, Act One, Scene Two

Carr keeps returning to this single act for the rest of the play, because the issue is never really “what happened at Aulis.” It is what a society allows itself to do to a daughter when a man decides the reasons are good enough.

The Value of a Girl

Carr sharpens the theme further by making Clytemnestra name it directly, stripping away the political language Agamemnon hides behind and replacing it with the plainest possible statement of the issue.

But a girl. You can do anything to a girl.Clytemnestra, Act Two, Scene Four

That line is the essay-ready core of this theme: a girl’s life is treated as negotiable in a way a son’s would not be, useful precisely because she can be given away, married off, or sacrificed without the political cost a prince would carry. Agamemnon’s own attempt to fix the damage only proves the point, offering a replacement as though one girl could simply substitute for another.

I’m going to give you another girl. An incomparable girl. I’m going to give you another Iphigenia.Agamemnon, Act Two, Scene Four

Clytemnestra’s fury at that offer is the theme reaching its clearest statement: a daughter is not interchangeable stock, and treating her as though she were is precisely the crime the play is built around.

Revenge as Inheritance

The second issue running through the play is what happens once that first violence is committed: it does not end, it reproduces. Clytemnestra spends ten years unable to let the killing go, and Carr is careful to show her naming that inability rather than hiding it.

Am I meant to forget? Do you actually think you have the right to forgive me anything?Clytemnestra, Act Two, Scene One

Aegisthus widens the issue from one family argument into a pattern stretching back generations, making clear that Agamemnon’s crime is not an aberration but a repetition.

The blood in you is mad, coursing down the generations, a slime over everything.Agamemnon, Act Two, Scene One

Clytemnestra herself sees the danger of what she is becoming, aware that her own rage has begun to mirror the violence she is avenging.

It’s becoming a habit. Soon it’ll be normal and before you can turn round it’ll be a law.Clytemnestra, Act Two, Scene Three

That warning is the theme at its most self-aware: violence, once it is normalised, stops needing a special justification and simply becomes how this family solves its problems.

Power, Excuse, and Self-Justification

A third strand of the issue is how power lets a person excuse almost anything. Agamemnon’s justifications shift constantly, from political necessity to a strange claim of shared guilt, and Carr lets each excuse collapse under the next question.

My hands were tied.Agamemnon, Act Two, Scene Two

Clytemnestra’s rebuttal exposes exactly what that excuse is designed to hide.

Iphigenia’s hands were tied.Clytemnestra, Act Two, Scene Two

Even Tyndareus, watching from outside the marriage, refuses to let wealth and rank stand in for morality, insisting that no amount of stolen gold changes what was done.

You can plaster your walls in jade and mother of pearl, prance your floors of marble and stolen gold, but you’re a savage from a long line of them.Tyndareus, Act Two, Scene Ten

That is the issue in its final form: power does not remove guilt, it only buys the guilty more time before they have to face it.

Girl on an Altar Theme or Issue: Using This in the Exam

How to use it: pick one clean statement of the issue, a girl’s life set against a man’s ambition, and build every paragraph as a fresh piece of evidence for it rather than a new theme. Move from the sacrifice itself, to Clytemnestra’s blunt naming of the double standard, to the cycle of revenge it produces, keeping each paragraph anchored in a quotation before you widen out. For comparison, pair Girl on an Altar’s treatment of sacrificed or undervalued daughters with how your other texts handle power exercised at a vulnerable person’s expense, and always return explicitly to the wording of the question rather than simply retelling the plot.

Conclusion

Girl on an Altar keeps one issue in view from its first scene to its last: what it costs a family, and a woman, when a girl’s life is treated as expendable. Agamemnon’s shifting excuses, Clytemnestra’s refusal to forget, and the widening circle of revenge all trace back to that single choice at Aulis. For the exam, that single sentence, a girl’s worth measured against a man’s ambition, is strong enough to carry a full Theme or Issue answer on its own.