Canto 2 (The Convent): The Abbess of Whitby, with a party of nuns including a novice Sister Clare, journeys by sea to Lindisfarne, where she forms one of a tribunal in sentencing Constance de Beverly to be immured alive together with an accomplice in the planned murder of Clare. In her final speech Constance tells how she had escaped from a convent to join Marmion who had then abandoned her for the wealthy Clare, charging Clare's fiancé with treason and defeating him in armed combat.