 An E-book edition was published by Gollancz's SF Gateway imprint on September 29, 2011 as part of a general release of de Camp's works in electronic form.As with all of the "Krishna" novels, the title of "The Queen of Zamba" has a "Z" in it, a practice de Camp claimed to have devised to keep track of them.Short stories in the series do not follow the practice, nor do "Viagens Interplanetarias" works not set on Krishna.