781 1ed69458-8f1d-4d1f-9a87-54dd0261bc3d Synthetic Men of Mars Edgar Rice Burroughs calibre (0.6.35) [http://calibre-ebook.com] 1986-06-12T00:00:00 UND EDITORIAL REVIEW: John Carter desperately needed the aid of Barsoom's greatest scientist. But Ras Thavas was the prisoner of a nightmare army of his own creation -- half-humans who lived only for conquest. And in their hidden laboratory seethed a horror that could engulf all of Mars. Random House 9780345339300 Science fiction General Science Fiction - General Fiction Science Fiction & Fantasy Fiction - Science Fiction Classics Children's & young adult fiction & true stories Life on other planets Fiction Children's Fiction