Do you have a Facebook profile? If you do, look for the webpage "Free English Books" - it seekms to have started with grammar and language teaching, but nowadays there are also lots of novels there.
thisa means that you will probably have to scroll down a bit to get there, but there are lots of links to books regarding listening (always with the CD / CDs) that you can download (for free).
To see what it is about, you may take a look at the following weblinks (that I �ve just copied from there to paste here - there are a lot mpore, you just have to look for them):
https://drive.google.com/file/d/0B7opeKsOq-1TeF9XNS01MTRwQkE/view?pref=2&pli=1
http://freebookyes.com/test-your-listening-book-and-cd/
http://freebookyes.com/attitude-1-dvd-activity-book-booklet-teachers-book/
Sandra