I was once a noble beam, but now I’m battered and worn. However, I hold a secret message

What Am I?

To determine what you are, we can analyze the given clues.

First, you were once a noble beam but now you're battered and worn. This suggests that you were once in good condition, but over time you have become damaged or worn out.

Second, you mention that you hold a secret message. This implies that there is something hidden within you, potentially conveying information or a secret.

Putting these clues together, it sounds like you might be a book. Books are often referred to as noble due to the knowledge and stories they contain. Over time, books can become worn and battered with use. The notion of a secret message could refer to the content hidden within the book's pages, which could contain a story, knowledge, or even a literal encoded message.

Therefore, based on the clues provided, it is likely that you are a book.