What has the author Erna Von der Walde written?

There is no known author named Erna Von der Walde. It's possible you've misremembered the name or there is a typo.

To help me find the author you're looking for, could you please provide any additional information you might have, such as:

* Any other names they might use: Are they known by a different name or a pseudonym?

* The type of books they write: What genre do their books fall into?

* A specific book title they wrote: Do you recall the title of any of their books?

* Approximate time period they were writing: Do you know when they were active as an author?

With more information, I can try to track down the author you're looking for.