Action-packed silent Tarzan film stars James Pierce (who originated the role on radio) as the loincloth-clad hero. After searching for a legendary city of diamonds, the jungle-dwelling hero and his pet lion help rescue a beautiful maiden from worshippers seeking to sacrifice her in order to please their god. With Frederick Murphy, Edna Murphy, Harold Goodwin, and Boris Karloff. 59 min. Standard; Soundtrack: music score. Silent with music score.