During the late 1960s, I re-read H Rider Haggard's Ayesha: She-Who-Must-Be-Obeyed series, and became inspired to write a second novelette as a sequel to The Hidden City of A-Ten.

The result was The Return to A-Ten, an adventure tale about the twins who travel to South America once again to discover what has happened to A-Ten since their last trip.

Along with Zorab, The Hidden City of A-Ten, and The Female Commandoes, The Return to A-Ten was somehow lost during my frequent moves in the late 1960s and early 1970s.