Story perspectives

Sororicidal Explores Dark Sibling Rivalry in Edwardian Adelaide

4/3/2026

Summary

Story summary

Edwina Preston's novel Sororicidal, set in Edwardian-era Adelaide, centers on sisters Margot and Mary and their rivalrous, emotionally injurious dynamic.
The narrative alternates between Margot's and Mary's perspectives, revealing manipulation and childhood trauma.
As adults, their bond remains fraught, with Mary's artistic success often coming at Margot's expense.
The work examines family, consent, and the psychological impact of sibling relationships, portraying rivalry and revenge.
Sororicidal is available from Picador.

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Story summary

Edwina Preston's novel Sororicidal, set in Edwardian-era Adelaide, centers on sisters Margot and Mary and their rivalrous, emotionally injurious dynamic.
The narrative alternates between Margot's and Mary's perspectives, revealing manipulation and childhood trauma.
As adults, their bond remains fraught, with Mary's artistic success often coming at Margot's expense.
The work examines family, consent, and the psychological impact of sibling relationships, portraying rivalry and revenge.
Sororicidal is available from Picador.