The Master Mind of Mars - Barsoom Series, Book 6 (Unabridged)

The Master Mind of Mars is a science fantasy novel by American writer Edgar Rice Burroughs, the sixth of his Barsoom series. Burroughs' working titles for the novel were A Weird Adventure on Mars and Vad Varo of Barsoom. It was first published in the magazine Amazing Stories Annual vol. 1, on July 15, 1927. The first book edition was published by A. C. McClurg in March, 1928.