An insightful post on Cabinet of Wonders/Damn Data! on Adamski's "lost" sci-fi novel, along with the good news Tim Beckley has published the book and it's now available.
Adamski's missing sci-fi novel
After posting references and noting specific things, (from Bennett, etc.) Damn Data concludes:
So to dismiss him [Adamski] out of hand for simple fakery is missing the big story.
It's the "big story" surrounding contactees that is often ignored or missed; it just isn't so simple to say Adamski and other contactees were kooks or frauds. The circus element certainly was ever present in these events; but that's not all there was to the phenomena.