What has the author Roy A Edilfelt written?

It appears you're asking about an author named "Roy A Edilfelt." However, there is no widely known author with that name. It's possible there's a typo in the name, or the author might be less well-known.

To help you find the author you're looking for, could you please provide more information? For example:

* Do you remember the title of any books they wrote?

* What genre are they known for?

* Is there a specific year or time period they published their work?

With more context, I can help you find the right author.