[Illustration: “Suddenly I heard the Professor’s voice just as if he were right out there on the desert.”] THE RADIO BOYS SEEK THE LOST ATLANTIS By GERALD BRECKENRIDGE Author of _“The Radio Boys on the Mexican Border,” “The Radio Boys with the Revenue Guards,” “The Radio Boys on Secret Service Duty,” “The Radio Boys Search for the Inca’s Treasure,” “The Radio Boys Rescue the Lost Alaska Expedition,” “The Radio Boys in Darkest Africa.”_ [Illustration: Radio] Frontispiece A. L. BURT COMPANY Publishers New York THE RADIO BOYS SERIES A SERIES OF STORIES FOR BOYS OF ALL AGES By GERALD BRECKENRIDGE The Radio Boys on the Mexican Border The Radio Boys on Secret Service Duty The Radio Boys with the Revenue Guards The Radio Boys Search for the Inca’s Treasure The Radio Boys Rescue the Lost Alaska Expedition The Radio Boys Seek the Lost Atlantis The Radio Boys In Darkest Africa Copyright, 1923 By A. L. BURT COMPANY Made in “U. S. A.” PREFACE Dear Boys: One of the greatest, if not _the_ greatest story of all the ages, is the legend of Atlantis. According to this legend, there existed at one time a great continent in the Atlantic Ocean not far west of the Pillars of Hercules, those two great rocks of Gibraltar in Spain and Jibel Kebir in Morocco which guard the entrance to the Mediterranean. The legend says that this continent was the first region in which man rose from barbarism to civilization, and that in the course of ages it became a populous and mighty nation from whose shores immigrants went out to settle the shores of the Gulf of Mexico, the valley of the Mississippi, the valley of the Amazon, the Pacific coast of South America, the shores of the Mediterranean, of the Baltic, the Black Sea and the Caspian and the western coast of Europe and Africa. From this continent, continues the legend, the first colonists penetrated western Africa clear to Egypt where they took root in the Nile valley and developed what is today conceded to be the earliest known civilization.