They're all by this author:
Jonathan Edward Feinstein
at this website:
http://www.sc2.com/e-books/
Now, let me say this: I have no idea how good/bad/ugly/indifferent/enjoyable/horrible/delightful these novels are, but there are more than 20 novels in both
lit and
HTML zipped format for download.
Explore at your own risk.
I have no affiliation with the author.
EDITED: There are over 30 Science Fiction and Fantasy novels that are free.
Don