What has the author E P Silin written?

There is no author named E P Silin. It's possible you've misremembered the author's name, or there's a typo in the name.

To help me find the correct author, could you please provide:

* Any other details about the author or their works: Do you remember what type of books they write? What is the subject matter? Any specific titles?

* A possible alternative spelling: Is there another way you could spell the name?

With more information, I can help you find the correct author.