In 1987, the Robotech animated series was adapted into novel form by authors James Luceno and Brian Daley and published by Del Rey Books.
Having previously collaborated on the animated series Galaxy Rangers, the pair released the Robotech novels under the unified pseudonym of "Jack McKinney".
Using fictitious epigraphs in the style of Dune, McKinney's novels escaped the limitations inherent in the dubbed cartoon and fleshed out its chronology in greater detail; most significantly, by adapting the storyline of the aborted sequel project, "The Sentinels".
To work around this, the Southern Cross and Invid Invasion collections contain new appendices written by Robotech fan Jonathan L. Switzer correcting any newborn mistakes.
Book #18 is unique as it is set after the events of the final episode of Robotech and wraps up all of the outstanding plotlines and questions that remained after the series ended.