Tarzan the Invincible, an adventure novel by Edgar Rice Burroughs, follows the legendary ape-man as he confronts Bolshevik conspirators in the African jungle. Communist agents plotting to plunder the fabled gold of Opar betray Tarzan, abandoning him weaponless in the wilderness. Accompanied by his loyal golden lion, Jad-bal-ja, Tarzan must survive treachery, hostile tribes, and wild beasts while racing to thwart the thieves. Aided by Zora Drinov, a beautiful Russian revolutionary whose sympathies conflict with her mission, Tarzan faces greed and betrayal head-on, proving once again that no enemy—man or beast—can defeat the invincible Lord of the Jungle.
