2.1 - Sheridan Le Fanu: Carmilla

From textbookstuff.com:

A beautiful but mysterious young lady, Carmilla, comes to stay with an aristocrat and his daughter in their castle in Styria, on the borders of Austria and Hungary. Almost at once an unexplained wasting disease breaks out in the surrounding villages, claiming the lives of numerous women. Within the castle itself, a huge demonic cat-like creature has been seen prowling at night. The forces of darkness are closing in and all eyes turn to the enigmatic Carmilla. Who - or what - exactly is she?

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