Tarzan the Terrible is the eighth book in the series. Now grown and married with a home and family of his own, Tarzan is desperately trying to rescue Jane from her kidnappers, when he stumbles across a seemingly prehistoric land.

Commencing just a few months after the resolution of the previous book in The Tarzan Series, Tarzan the Untamed, this pulp fiction fantasy follows the ape man as he journeys through Africa's jungle to rescue Jane from her German kidnappers. Losing his way, Tarzan comes across a hidden valley, which is the home to many human-like tribes and carnivorous dinosaurs. Now a captive in the mysterious land of Pal-ul-don, Tarzan learns that his beloved Jane is also being held prisoner in the treacherous valley. Charged with refreshed determination, he attempts his own escape so that he can free his true love.

First published in 1921, Edgar Rice Burroughs continues his Tarzan series with this exciting adventure-fantasy instalment. Science fiction fans should not miss this entertaining novel.