What else is there?

I attended this past Hobbit Society meeting. The theme for this month was "Supernatural within Tolkien Legendarium." As such witches and ghost were discussed as well as monsters. However, the definition of supernatural is "attributed to some force beyond scientific understanding or the laws of nature." Which I feel encompasses literally everything within Tolkien's world. While I guess I may not have contributed to the conversation as I should have, I also feel that more topic could have been covered.