Notes: • "Published in Great Britain by Universal-Tandem Publishing Co. Ltd. 1975" • Month from amazon.uk • Printing not stated, no number line; only known Tandem edition • The artist is not credited, no visible signature on the artwork. • Art credited to Dave Pether on The British Edgar Rice Burroughs Society Facebbok page and ERB Webzine site. • "This edition follows the text of the original novel first published in the December, 1918 issue of Blue Book Magazine" on copyright page • UK 30p, Australia $1.10, New Zealand $1.10, Canada$1.35, Malta 40c