_Sunken ships and strange ocean changes presage the mightiest and most unaccountable threat ever made against mankind’s world._ [Transcriber’s Note: This etext was produced from Argosy All-Story Weekly March 2, 9, 16, 23, 30, April 6, 1929]…
Or read it translated: 日本語 · 中文 · हिन्दी · Español · العربية · Français · বাংলা · Português · Русский · Bahasa Indonesia · اردو · Deutsch · Kiswahili · 한국어