Eshetnek

Can you clarify what Eshetnek refers to? It isn’t a widely documented term, so I want to make sure I write the article in the right context. Do you want Eshetnek to be treated as (a) a real ethnolinguistic group or historical name, (b) a fictional culture/place from a book, game, or other media, or (c) a linguistic or cultural concept? If you prefer a fictional entry, please provide the setting and any key facts you’d like included.