Even though it tanked some years ago at the box office, Disney still controls screen rights to the "John Carter" books by Edgar Rice Burroughs, with ongoing development to reboot Burroughs' second book in his 'Barsoom' (Mars) series, "The Gods of Mars":
"The Gods of Mars" was first published in the pulp magazine "All-Story" as a five-part serial, January-May 1913, then published as a complete novel by A. C. McClurg, September, 1918.
At the end of the first book, "A Princess of Mars', 'John Carter' is unwillingly transported back to Earth.
"...'The Gods of Mars' begins with Carter's arrival back on 'Barsoom' (Mars) after a ten-year separation from his wife 'Dejah Thoris', his unborn child and the 'Red Martian' people of the nation of 'Helium'.
"Unfortunately, Carter materializes in the one place on Barsoom from which nobody is allowed to depart: the 'Valley Dor', aka the 'Barsoomian' afterlife.
"Unfortunately, Carter materializes in the one place on Barsoom from which nobody is allowed to depart: the 'Valley Dor', aka the 'Barsoomian' afterlife.
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