A shaky beginning gives way to a classic Tarzan tale with many of Lord Greystoke's Greatest Hits: terrorized natives, stoic resistance to being burned alive, losing consciousness and waking up in a lost city, cavalry rescue by animal pals. The City of Maniacs is a highlight, sufficiently different from Opar to feel like a new experience. The jingoistic revenge sequence in the Nazi plotline is objectionable, but as a plot device, it works well to propel Tarzan into his next outrageous adventure.