Tarzan and the Lost Empire is a novel by American writer Edgar Rice Burroughs, the twelfth in his series of twenty-four books about the title character Tarzan. The story was first published as a serial in Blue Book Magazine from October 1928 through February 1929; it first appeared in book form in a hardcover edition from Metropolitan Newspaper Services in September 1929. This was the first Edgar Rice Burroughs book not published by A. C. McClurg, with whom Burroughs had cut off business ties due to a dispute over royalties. Source: Wikipedia (en)