* Is part of a collection: It could be included in an anthology of Gothic literature, or a collection of short stories by a particular author.
* Has a different title: The story might have a different title, and "Carmella" refers to a character or a location within the story.
* Is unpublished: The story might be an unpublished work, or a fan fiction piece.
To find the story, you could try the following:
1. Provide more context: If you remember any details about the story, such as the author's name, the publication date, or any other characters or themes, you can try searching online using those keywords.
2. Search online databases: Websites like Project Gutenberg, Internet Archive, and JSTOR offer large collections of literary works, including short stories.
3. Check with libraries and bookstores: Local libraries and bookstores may have collections of Gothic literature or anthologies that could contain the story you're looking for.
4. Contact literary experts: If you're still unable to find the story, you could contact literary experts or scholars in Gothic literature for assistance.
By providing more details about the story, you can increase the chances of finding it.