All I say is, watch over Sibyl. Don’t let her come to any harm. Mother, you must watch over her.
– Oscar Wilde
The Picture of Dorian Gray, Chapter 5. James Vane warns his mother not to let his sister Sibyl come to any harm while he is away in Australia. James does not trust her lover Dorian Gray. This foreshadows that her love for Dorian will have fatal consequences.