[Black Cat](https://openlibrary.org/works/OL41068W) [Cask of Amontillado](https://openlibrary.org/works/OL41016W) [Fall of the House of Usher](https://openlibrary.org/works/OL41078W) Gold-Bug Murders in the Rue Morgue Mystery of Marie Roget [Purloined Letter](https://openlibrary.org/works/OL41065W) [Tell-tale Heart](https://openlibrary.org/works/OL41059W)
Severity reflects intensity, not value — “central theme” means a warning is a core part of the book, not that the book is bad.