First published in 1881, Eight Hundred Leagues on the Amazon is an adventure novel in two parts by Jules Verne, having a basis in codes and cryptography. Unlike many of his other stories, it is not a work of science fiction. Rather, it describes a voyage down the Amazon River on a large raft, or jangada). Many aspects of the raft, scenery, and journey are described in detail. Summary by not.a.moose, Adapted from wikipedia.