The supernatural element in "Christabel" involves a:

• Christabel:
This is a long narrative ballad by S.T. Coleridge. Christabel একজন তরুণী যিনি মধ্যরাতে একাকী গাছপালা ঘেরা জায়গায় যান, এবং প্রার্থনা করেন।
- এই কবিতায় একই সাথে sin versus religiosity, evil versus devoutness কে উপস্থাপন করা হয়।
- Christabel হচ্ছে religiosity এর প্রতীক, অপরদিকে Geraldine হচ্ছে sin এর প্রতীক।

• Christabel is the innocent, virtuous daughter of Sir Leoline. While praying in the woods at night for her fiancé, she finds Geraldine, a lady in distress whom she takes home to her father’s castle. Geraldine says that she is the daughter of Lord Roland de Vaux, once a friend of Sir Leoline before the two men quarreled, and claims to have been kidnapped. In truth, however, she is an evil supernatural creature disguised as Geraldine. Christabel penetrates her deception but is forced into silence by magic. When she finally speaks, Sir Leoline rejects her entreaty, and the narrative ends with Sir Leoline sending a message telling Lord Roland that his daughter is safe and offering reconciliation.

Source: Britannica, Website lecture.