Oh, no, this is a book series, and I 100% promise you that you have never heard of it unless you happened to buy a copy one from this dude at a local community event in the 1990s, or know someone who did. This was before print-on-demand or online sellers, I'm pretty sure he got them printed at a local printer's and only ever sold them that way, and wasn't even part of any indie author community. There are literally four google results for it, one of them is that local used bookstore's catalog, one of them is my legalname booktracking account, and the other two are spam sites that scraped the bookstore.

Definitely really exists though, even if I did buy it from the back of a truck at a flea market in [not East Germany] I should re-read except I lost track of my copy of book 1 at some point.