The Thousand-Headed Man — Lester Dent

With a mysterious black Chinaman, Doc Savage and his amazing crew journey to the jungles of Indo-China in a desperate gamble to destroy the infamous Thousand-headed Man. From the fogs of London to the jungles of Indo-China, Doc and his men follow the trail of the three mysterious black keys to an ancient lost city guarded by equally ancient terror known as the Thousand-Headed Man.