For example,
https://bookshout.com/ebooks/lad-a-dog--3
On the other hand there is
https://www.amazon.com/Treve-Albert-...dp/B00JPIO04A/
Or
https://bookshout.com/ebooks/the-way...nd-some-others
The first book, Lad: A Dog, is available from Project Gutenberg and other public domain sites, the second book, Treve, is not. For the Treve book, if you click on the book cover, the Look Inside, there is a copyright notice. Both are from the same publisher.
Does that copyright cover the raw text? I.e., could I use the raw text, excluding images and anything he's added and use that in a collected works book that I upload here?