Eight Hundred Leagues on the Amazon (French: La Jangada - Huit Cents lieues sur l'Amazone) is a novel by Jules Verne, published in 1881.

[1] It is an adventure novel, involving how Joam Garral, a ranch owner living near the Peruvian-Brazilian border on the Amazon River, is forced to travel downstream when his past catches up with him.

Most of the novel is situated on a large jangada (a Brazilian timber raft) that is used by Garral and his family to float to Belém, at the river's mouth.

At Belém, Joam plans to restore his good name, as he is still wanted in Brazil for a crime he did not perpetrate.

When Torres is killed, the Garral family must race to decode the letter before Joam is executed.