Earthman Sentinel: A Central Park Starship Adventure Kindle Edition

Cover illustration for "Earthman Sentinel: A Central Park Starship Adventure Kindle Edition"
Book cover commission for Jack Porter
The books are available on :

https://www.amazon.com/Earthman-Sentinel-Central-Starship-Adventure-ebook/dp/B0BQ3X9QQH?ref_=ast_author_dp