author
Mark Ganes
A hard-to-pin-down pulp-era science-fiction writer, this author is remembered mainly for a vivid space adventure that first appeared in the early 1950s. The surviving record is slim, which gives the work an intriguing lost-corner-of-SF feel.
1 Audiobook
Evil Out of Onzar
by Mark Ganes
About the author
Mark Ganes appears to be a little-known science-fiction author whose documented footprint today is very small. Reliable bibliographic sources consistently point to "Evil Out of Onzar" as the work most clearly associated with the name, and they place it in the September 1952 issue of Planet Stories.
That novella later remained available through projects that preserve older genre fiction, including Project Gutenberg, which describes it as a science-fiction novel from the early 1950s. Modern catalog and reader sites also link Ganes with that title, but I couldn't confirm much more biographical detail from solid sources.
So the clearest picture is of an author connected with mid-century magazine SF rather than a heavily documented literary career. If you're browsing vintage space adventure, Ganes stands out as one of those tantalizing names preserved more by a single story than by a well-recorded public life.